đź“š Publications

Research contributions from NOMAD Laboratory

33
Selected Papers
88
Published Papers
0
Patents
4
Review
3
Pre-prints

2025

Terahertz-field activation of polar skyrons

Huaiyu Hugo Wang, Vladimir A. Stoica, Cheng Dai, Marek Paściak, Sujit Das, Tiannan Yang, Mauro A. P. Gonçalves, Jiri Kulda, Margaret R. McCarter, Anudeep Mangu, Yue Cao, Hari Padma, Utkarsh Saha, Diling Zhu, Takahiro Sato, Sanghoon Song, Matthias C. Hoffmann, Patrick Kramer, Silke Nelson, Yanwen Sun, Quynh Nguyen, Zhan Zhang, Ramamoorthy Ramesh, Lane W. Martin, Aaron M. Lindenberg, Long-Qing Chen, John W. Freeland, Jirka Hlinka, Venkatraman Gopalan & Haidan Wen

🏆 SELECTED Nature Communication 16, 8994 (2025) DOI:10.1038/s41467-025-64033-6

Harnessing the polar vortex motion in oxide heterostructures

Pushpendra Gupta, Mohit Tanwani, Qi Xu, Guanshihan Du, Peiran Tong, Yongjun Wu, Zijian Hong, He Tian, Ramamoorthy Ramesh, Sujit Das

Pre-prints arxiv DOI: 10.48550/arXiv.2509.06189

PTST: A polar topological structure toolkit and database

Guanshihan Du, Yuanyuan Yao, Linming Zhou, Yuhui Huang, Mohit Tanwani, He Tian, Yu Chen, Kaishi Song, Juan Li, Yunjun Gao, Sujit Das, Yongjun Wu, Lu Chen, Zijian Hong

Pre-prints arxiv DOI: 10.48550/arXiv.2504.04536

Fatigue-free ferroelectricity in Hf0.5Zr0.5O2 ultrathin films via interfacial design

Chao Zhou, Yanpeng Feng, Liyang Ma, Haoliang Huang, Yangyang Si, Hailin Wang, Sizhe Huang, Jingxuan Li, Chang-Yang Kuo, Sujit Das, Yunlong Tang, Shi Liu, Zuhuang Chen

🏆 SELECTED Nature Communications 16, 7593 (2025) DOI: 10.1038/s41467-025-63048-3

Enhancing ferroelectric stability: wide-range of adaptive control in epitaxial HfO2/ZrO2 superlattices

Jingxuan Li, Shiqing Deng, Liyang Ma, Yangyang Si, Chao Zhou, Kefan Wang, Sizhe Huang, Jiyuan Yang, Yunlong Tang, Yu-Chieh Ku, Chang-Yang Kuo, Yijie Li, Sujit Das, Shi Liu, Zuhuang Chen

🏆 SELECTED Nature Communications 16, 8417 (2025) DOI: 10.1038/s41467-025-61758-2

Unleashing electrocatalytic oxygen evolution activity: engineering spin states in strained correlated oxides for enhanced performance

Shanquan Chen, Fenghui Gong, Xiaowen Li, Yu-Chieh Ku, Cheng-En Liu, Yiyang Nie, Yangyang Si, Shuai Yuan, Zhenni Yang, Jingyu Lu, Huajun Qiu, Kailong Hu, Kaikai Li, Yan Huang, Chengyan Xu, Kelvin H.L. Zhang, Yunlong Tang, Lang Chen, Chun-Fu Chang, Zhiwei Hu, Sujit Das, Xiuliang Ma, Chang-Yang Kuo, Zuhuang Chen

PUBLISHED ACS Nano (2025)

Orbital and Spin Reconstruction by Interface Symmetry Engineering in Oxide Superlattices

Aryan Keshri, Sourav Chowdhury, Naveen Goyal, Wasim Akram, Santanu Pakhira, Peter Nagel, Stefan Schuppler, Sadanand Powar, Mohit Tanwani, Pushpendra Gupta, Anju Ahlawat, Tuhin Maity, N. Ravishankar, Mortiz Hoesch, Sujit Das

PUBLISHED Small 2500089 (2025) DOI: 10.1002/smll.202500089

Ideal antiferroelectricity with large digital electrostrain in PbZrO3 epitaxial Thin Films

Yangyang Si, Ningbo Fan, Yongqi Dong, Zhen Ye, Shiqing Deng, Yijie Li, Chao Zhou, Qibin Zeng, Lu You, Yimei Zhu, Zhenlin Luo, Sujit Das, L. Bellaiche, Bin Xu, Huajun Liu, Zuhuang Chen

🏆 SELECTED Nature Communications 16, 4263 (2025) DOI: 10.1038/s41467-025-59598-1

Ultrahigh-power-density flexible piezoelectric energy harvester based on freestanding ferroelectric oxide thin films

Zhongqi Ren, Shiqing Deng, Junda Shao, Yangyang Si, Chao Zhou, Jingjing Luo, Tao Wang, Jinyang Li, Jingxuan Li, Haipeng Liu, Xue Qi, Peike Wang, Ao Yin, Lijun Wu, Suzhu Yu, Yimei Zhu, Jun Chen, Sujit Das, Jun Wei, Zuhuang Chen

🏆 SELECTED Nature Communications 16, 3192 (2025) DOI: 10.1038/s41467-025-58386-1

Unlocking Exceptional Negative Valency and Spin Reconstruction in Non-Collinear Anti-Ferromagnetic Antiperovskite Mn3NiN Film

Aryan Keshri, Prasanna Das, Nayana Devaraj, Sourav Chowdhury, Jayjit Kumar Dey, Sunil Ojha, Pushpendra Gupta, Moritz Hoesch, Feras Afaneh, Basanta Roul, Thirumalai Venkatesan, Bivas Saha, Awadhesh Narayan, Manuel Bibes, Sujit Das

🏆 SELECTED Advanced Functional Materials (2025) DOI: 10.1002/adfm.202500655

Large enhancement of ferroelectric properties of perovskite oxides via nitrogen incorporation

Tao Wang, Fenghui Gong, Xue Ma, Shen Pan, Xian-Kui Wei, Changyang Kuo, Suguru Yoshida, Yu-Chieh Ku, Shuai Wang, Zhenni Yang, Sankalpa Hazra, Kelvin H. L. Zhang, Xingjun Liu, Yunlong Tang, Yin-Lian Zhu, Chun-Fu Chang, Sujit Das, Xiuliang Ma, Lang Chen, Bin Xu, Venkatraman Gopalan, Laurent Bellaiche, Lane W. Martin, Zuhuang Chen

PUBLISHED Science Advances 11, eads8830 (2025) DOI: 10.1126/sciadv.ads8830

Hidden domain boundary dynamics towards crystalline perfection

Anudeep Mangu, Vladimir A. Stoica, Hao Zheng, Tiannan Yang, Maohua Zhang, Hugo Wang, Rui Zhu, Quynh L. Nguyen, Sanghoon Song, Sujit Das, Peter Meisenheimer, Elizabeth Donoway, Matthieu Chollet, Yanwen Sun, Joshua J. Turner, John W. Freeland, Haidan Wen, Lane W. Martin, Long-Qing Chen, Venkatraman Gopalan, Diling Zhu, Yue Cao, Aaron M. Lindenberg

PUBLISHED Proceedings of the National Academy of Sciences 122 (2) e2407772122 (2025) DOI: 10.1073/pnas.2407772122

2024

A new pathway to correlate the octahedral tilt coupling and spin-orbit reconstruction at oxide interfaces

Jayjit Dey, Koushik Jagadish, Arka Bandyopadhyay, Sourav Chowdhury, Moritz Hoesch, Anju Ahlawat, Feras Afaneh, Aryan Keshri, Basanta Roul, Saluru Krupanidhi, Mukul Gupta, Ram Choudhary, Thirumalai Venkatesan, Awadhesh Narayan, N Ravishankar, Sujit Das

Pre-prints Research Square Research Square

Dynamics of ferroelectric flux closure array in oxide superlattices

Mohit Tanwani, Pushpendra Gupta, Sadanand Powar, Sujit Das

PUBLISHED Small 2405688 (2024) DOI: 10.1002/smll.202405688

Highly Responsive Polar Vortices in All-Ferroelectric Heterostructures

Pravin Kavle, Aiden M. Ross, Harikrishnan KP, Peter Meisenheimer, Arvind Dasgupta, Jiyuan Yang, Ching-Che Lin, Hao Pan, Piush Behera, Eric Parsonnet, Xiaoxi Huang, Jacob A. Zorn, Yu-Tsun Shao, Sujit Das, Shi Liu, David A. Muller, Ramamoorthy Ramesh, Long-Qing Chen, Lane W. Martin

🏆 SELECTED Advanced Materials (2024) DOI: 10.1002/adma.202410146

Anisotropic Ferroelectricity in Polar Vortices

Piush Behera, Aiden M. Ross, Nirmaan Shanker, Peter Meisenheimer, Mahir Manna, Ching-Che Lin, Shang-Lin Hsu, Isaac Harris, Pravin Kavle, Sajid Husain, Shashank Ojha, Sujit Das, Archana Raja, Lane W. Martin, Sandhya Susarla, Sayeef Salahuddin, Long-Qing Chen, Ramamoorthy Ramesh

🏆 SELECTED Advanced Materials (2024) DOI: 10.1002/adma.202410149

Large Enhancement of Properties in Strained Lead-free Multiferroic Solid Solutions with Strong Deviation from Vegard's Law

Tao Wang, Mingjie Zou, Dehe Zhang, Yu-Chieh Ku, Yawen Zheng, Shen Pan, Zhongqi Ren, Zedong Xu, Haoliang Huang, Wei Luo, Yunlong Tang, Lang Chen, Cheng-En Liu, Chun-Fu Chang, Sujit Das, Laurent Bellaiche, Yurong Yang, Xiuliang Ma, Chang-Yang Kuo, Xingjun Liu, Zuhuang Chen

PUBLISHED Matter (2024) DOI: 10.1016/j.matt.2024.09.018

Orientational Switching of Perpendicular Magnetic Anisotropy and Near-Infrared Plasmonic States in SrRuO3 Thin Films: Implications for Spintronic Devices

Jayjit Kumar Dey, Prasanna Das, Sourav Chowdhury, Deepak Prajapat, Daniel Perez-Salinas, Pushpendra Gupta, Garima Kaura, Basanta Roul, Smriti Bhatia, Simranjeet Kaur, Moritz Hoesch, Manuel Valvidares, Kaushik Sen, Bivas Saha, Sujit Das

PUBLISHED ACS Applied Nano Materials (2024) DOI: 10.1021/acsanm.4c04068

Non-equilibrium pathways to emergent polar supertextures

Vladimir A Stoica, Tiannan Yang, Sujit Das, Yue Cao, Huaiyu Wang, Yuya Kubota, Cheng Dai, Hari Padmanabhan, Yusuke Sato, Anudeep Mangu, Quynh L Nguyen, Zhan Zhang, Disha Talreja, Marc E Zajac, Donald A Walko, Anthony D DiChiara, Shigeki Owada, Kohei Miyanishi, Kenji Tamasaku, Takahiro Sato, James M Glownia, Vincent Esposito, Silke Nelson, Matthias C Hoffmann, Richard D Schaller, Aaron M Lindenberg, Lane W Martin, Ramamoorthy Ramesh, Iwao Matsuda, Diling Zhu, Long-Q Chen, Haidan Wen, Venkatraman Gopalan, John W Freeland

🏆 SELECTED Nature Materials (2024) DOI: 10.1038/s41563-024-01981-2

Optical Control of Adaptive Nanoscale Domain Networks

Marc Zajac, Tao Zhou, Tiannan Yang, Sujit Das, Yue Cao, Burak Guzelturk, Vladimir Stoica, Mathew Cherukara, John W Freeland, Venkatraman Gopalan, Ramamoorthy Ramesh, Lane W Martin, Long-Qing Chen, Martin Holt, Stephan Hruszkewycz, Haidan Wen

🏆 SELECTED Advanced Materials 36, 2405294 (2024) DOI: 10.1002/adma.202405294

Metamorphosis of topological spin structures

Jayjit Kumar Dey, Sujit Das

🏆 SELECTED Nature Physics: News and Views (2024) DOI: 10.1038/s41567-024-02514-z

Enhanced polarization switching characteristics of HfO2 ultrathin films Via acceptor-donor co-doping

Chao Zhou, Liyang Ma, Yanpeng Feng, Chang-Yang Kuo, Yu-Chieh Ku, Cheng-En Liu, Xianlong Cheng, Jingxuan Li, Yangyang Si, Haoliang Huang, Yan Huang, Hongjian Zhao, Chun-Fu Chang, Sujit Das, Shi Liu, Zuhuang Chen

PUBLISHED Nature Communications 15, 2893 (2024) DOI: 10.1038/s41467-024-47194-8

VO2 film decorated with MXene interface for lower power triggered terahertz modulation

Daoyuan Wang, Yunfeng Wang, Xue Chang, Jiang Li, Tangdong Feng, Jayjit Kumar Dey, Basanta Roul, Xueguang Lu, Lianghui Du, Zhaohui Zhai, Hongfu Zhu, Wanxia Huang, Sujit Das, Fuhai Su, Li-Guo Zhu, Qiwu Shi

PUBLISHED ACS Applied Materials & Interfaces 16, 10886–10896 (2024) DOI: 10.1021/acsami.3c16252

Antiferroelectric Oxide Thin-Films: Fundamentals, Properties, and Applications

Yangyang Si, Tianfu Zhang, Chenhan Liu, Sujit Das, Bin Xu, Roman G Burkovsky, Xian-Kui Wei, Zuhuang Chen

PUBLISHED Progress in Materials Science 101231 (2024) DOI: 10.1016/j.pmatsci.2023.101231

2023

Low voltage-driven high-performance thermal switching in antiferroelectric PbZrO3 thin films

Chenhan Liu, Yangyang Si, Hua Zhang, Chao Wu, Shiqing Deng, Yongqi Dong, Yijie Li, Meng Zhuo, Ningbo Fan, Bin Xu, Ping Lu, Lifa Zhang, Xi Lin, Xingjun Liu, Juekuan Yang, Zhenlin Luo, Sujit Das, Laurent Bellaiche, Yunfei Chen, Zuhuang Chen

🏆 SELECTED Science 382, 1265–1269 (2023) DOI: 10.1126/science.adj9669

Superior Energy Storage Performance in Antiferroelectric Epitaxial Thin Films via Structural Heterogeneity and Orientation Control

Tianfu Zhang, Yangyang Si, Shiqing Deng, Hailin Wang, Tao Wang, Junda Shao, Yijie Li, Xudong Li, Qianxin Chen, Chenhan Liu, Gaokuo Zhong, Yan Huang, Jun Wei, Lang Chen, Sujit Das, Zuhuang Chen

PUBLISHED Advanced Functional Materials 2311160 (2023) DOI: 10.1002/adfm.202311160

Tunable W5+ Absorbance in Laser Floating Zone Grown Bismuth Tungstate

Lucas A. Pressley, Mekhola Sinha, Maxime A. Siegler, Noah Edmiston, Shannon Bernier, Austin M. Ferrenti, Sujit Das, Ramamoorthy Ramesh, Satya Kushwaha, Tyrel M. McQueen

PUBLISHED J. Phys. Chem. C (2023) DOI: 10.1021/acs.jpcc.3c04645

Strain effects on stability of topological ferroelectric polar configurations in (PbTiO3)n/(SrTiO3)n superlattices

Cheng Dai, Zijian Hong, Sujit Das, Yun-Long Tang, Lane W. Martin, Ramamoorthy Ramesh, Long-Qing Chen

PUBLISHED Applied Physics Letters 123, 052903 (2023) DOI: 10.1063/5.0160901

The emergence of three-dimensional chiral domain walls in polar vortices

Sandhya Susarla, Shanglin Hsu, Fernando Gómez-Ortiz, Pablo García-Fernández, Benjamin H. Savitzky, Sujit Das, Piush Behera, Javier Junquera, Peter Ercius, Ramamoorthy Ramesh, Colin Ophus

PUBLISHED Nature Communications 14, 4465 (2023) DOI: 10.1038/s41467-023-40009-2

Pure Chiral Polar Vortex Phase in PbTiO3/SrTiO3 Superlattices with Tunable Circular Dichroism

Sujit Das, Margaret R. McCarter, Fernando Gómez-Ortiz, Yun-Long Tang, Zijian Hong, Anirban Ghosh, Padraic Shafer, Pablo García-Fernández, Javier Junquera, Lane W. Martin, Ramamoorthy Ramesh

🏆 SELECTED Nano Letters 23, 6602–6609 (2023) DOI: 10.1021/acs.nanolett.3c01744

Hexagonal close-packed polar-skyrmion lattice in ultrathin ferroelectric PbTiO3 films

Shuai Yuan, Zuhuang Chen, Sergei Prokhorenko, Yousra Nahas, Laurent Bellaiche, Chenhan Liu, Bin Xu, Lang Chen, Sujit Das, Lane W. Martin

🏆 SELECTED Physical Review Letters 130, 226801 (2023) DOI: 10.1103/PhysRevLett.130.226801

Multiscale electric-field imaging of polarization vortex structures in PbTiO3/SrTiO3 superlattices

Christopher Addiego, Jacob A. Zorn, Wenpei Gao, Sujit Das, Jiaqi Guo, Chengqing Qu, Liming Zhao, Lane W. Martin, Ramamoorthy Ramesh, Long-Qing Chen, Xiaoqing Pan

PUBLISHED APL Materials 11, 051106 (2023) DOI: 10.1063/5.0146713

Impact of uniaxial strain on terahertz modulation characteristics in flexible epitaxial VO2 film across the phase transition

Xue Chang, Jiang Li, Jian Mu, Chun-Hao Ma, Wanxia Huang, Hong-Fu Zhu, Qiao Liu, Liang-Hui Du, Sen-Cheng Zhong, Zhao-Hui Zhai, Sujit Das, Yen-Lin Huang, Gang-Bei Zhu, Li-Guo Zhu, Qiwu Shi

PUBLISHED Optics Express 31, 13243–13254 (2023) DOI: 10.1364/OE.488947

Emergent Ferroelectric Switching Behavior from Polar Vortex Lattice

Piush Behera, Eric Parsonnet, Fernando GĂłmez-Ortiz, Vishantak Srikrishna, Peter Meisenheimer, Sandhya Susarla, Pravin Kavle, Lucas Caretta, Yongjun Wu, Zishen Tian, Abel Fernandez, Lane W. Martin, Sujit Das, Javier Junquera, Zijian Hong, Ramamoorthy Ramesh

🏆 SELECTED Advance Materials 2208367 (2023) DOI: 10.1002/adma.202208367

Emergent Chirality in a Polar Meron to Skyrmion Phase Transition

Yu-Tsun Shao, Sujit Das, Zijian Hong, Ruijuan Xu, Swathi Chandrika, Fernando Gómez-Ortiz, Pablo García-Fernández, Long-Qing Chen, Harold Y. Hwang, Javier Junquera, Lane W. Martin, Ramamoorthy Ramesh, David A. Muller

🏆 SELECTED Nature Communications 14, 1355 (2023) DOI: 10.1038/s41467-023-36950-x

Topological phenomena at the oxide interfaces

Kavya Ravindran, Jayjit Kumar Dey, Aryan Keshri, Basanta Roul, Saluru Baba Krupanidhi, Sujit Das

Review Materials for Quantum Technology 3, 012002 (2023) DOI: 10.1088/2633-4356/acbcba

Highly flexible Ti3C2Tx MXene/ waterborne polyurethane membrane for high-efficiency terahertz modulation with low insertion loss

Tangdong Feng, Wanxia Huang, Yiwen Hu, Hongfu Zhu, Xue Chang, Tianyu An, Xueguang Lu, Daoyuan Wang, Basanta Roul, Sujit Das, Hua Deng, K. I. Zaytsev, Li-Guo Zhu, Qiwu Shi

PUBLISHED ACS Applied Materials & Interfaces (2023) DOI: 10.1021/acsami.2c21031

Reduced-graphene oxide decorated c-In2Se3/Si heterostructure-based broadband photodetectors with enhanced figures-of-merit

Basanta Roul, Arun Malla Chowdhury, Malti Kumari, Kishan Lal Kumawat, Sujit Das, K. K. Nanda, S. B. Krupanidhi

PUBLISHED Materials Advances 4, 5960606 (2023) DOI: 10.1039/D2MA00918H

2022

Structural Chirality of Polar Skyrmions Probed by Resonant Elastic X-ray Scattering

Margaret R. McCarter, Kook Tae Kim, Vladimir A. Stoica, Sujit Das, Christoph Klewe, Elizabeth P. Donoway, David M. Burn, Padraic Shafer, Fanny Rodolakis, Mauro A. P. Gonçalves, Fernando Gómez-Ortiz, Jorge Iñiguez, Pablo García-Fernández, Javier Junquera, Stephen W. Lovesey, Gerrit van der Laan, Se Young Park, John W. Freeland, Lane W. Martin, Dong Ryeol Lee, Ramamoorthy Ramesh

🏆 SELECTED Physical Review Letters 129, 247601 (2022) DOI: 10.1103/PhysRevLett.129.247601 Cover article

Optimization of PbTiO3 single crystals with flux and laser floating zone method

Lucas A. Pressley, Mekhola Sinha, Hector K. Vivanco, Juan Chamorro, Sujit Das, Ramamoorthy Ramesh, Tyrel M. McQueen

PUBLISHED Crystal Growth & Design 22, 5629–5638 (2022) DOI: 10.1021/acs.cgd.2c00716

Theoretical understanding of polar topological phase transitions in functional oxide heterostructures: A review

Xiangwei Guo, Linming Zhou, Basanta Roul, Yongjun Wu, Yuhui Huang, Sujit Das, Zijian Hong

Review Small Methods 6, 2200486 (2022) DOI: 10.1002/smtd.202200486

Erbium-Implanted Materials for Quantum Communication Applications

Paul Stevenson, Christopher M. Phenicie, Isaiah Gray, Sebastian P. Horvath, Sacha Welinski, Austin M. Ferrenti, Alban Ferrier, Philippe Goldner, Sujit Das, Ramamoorthy Ramesh, Robert J. Cava, Nathalie P. de Leon, Jeff D. Thompson

🏆 SELECTED Physical Review B 105, 224116 (2022) DOI: 10.1103/PhysRevB.105.224106

Inherent spin–polarization coupling in a magnetoelectric vortex

Sujit Das, Valentyn Laguta, Katherine Inzani, Weichuan Huang, Junjie Liu, Ruchira Chatterjee, Margaret R. McCarter, Sandhya Susarla, Arzhang Ardavan, Javier Junquera, Sinéad M. Griffin, Ramamoorthy Ramesh

🏆 SELECTED Nano Letters 10, 3976–3982 (2022) DOI: 10.1021/acs.nanolett.2c00496

Chiral structures of electric polarization vectors quantified by X-ray resonant scattering

Kook Tae Kim, Margaret R. McCarter, Vladimir A. Stoica, Sujit Das, Christoph Klewe, Elizabeth P. Donoway, David M. Burn, Padraic Shafer, Fanny Rodolakis, Mauro A. P. Gonçalves, Fernando Gómez-Ortiz, Jorge Íñiguez, Pablo García-Fernández, Javier Junquera, Stephen W. Lovesey, Gerrit van der Laan, Se Young Park, John W. Freeland, Ramamoorthy Ramesh, Dong Ryeol Lee

PUBLISHED Nature Communications 13, 1769 (2022) DOI: 10.1038/s41467-022-29359-5

VO2-metallic Hybrid Metasurfaces for Agile Terahertz Wave Modulation by Phase Transition

Hongfu Zhu, Jiang Li, Lianghui Du, Lijun Shan, Peng Li, Xueguang Lu, Tangdong Feng, Sujit Das, Wanxia Huang, Qiwu Shi, Liguo Zhu

PUBLISHED APL Materials 10, 031112 (2022) DOI: 10.1063/5.0081244

Local Manipulation of Polar Skyrmions and Topological Phase Transitions

Linming Zhou, Yongjun Wu, Sujit Das, Yunlong Tang, Cheng Li, Yuhui Huang, He Tian, Long-Qing Chen, Ramamoorthy Ramesh, Zijian Hong

PUBLISHED Matter 5, 1031–1041 (2022) DOI: 10.1016/j.matt.2022.01.010

The role of lattice dynamics in ferroelectric switching

Qiwu Shi, Eric Parsonnet, Xiaoxing Chen, Ren-Ci Peng, Abel Fernandez, Natalya Fedorova, Alexander Qualls, Xiaoxi Huang, Xue Chang, Hongrui Zhang, David Pesquera, Sujit Das, Dmitri Nikonov, Ian Young, Long-Qing Chen, Lane W. Martin, Yen-Lin Huang, Jorge Íñiguez, Ramamoorthy Ramesh

🏆 SELECTED Nature Communications 13, 1110 (2022) DOI: 10.1038/s41467-022-28622-z

Order-disorder transitions in a polar vortex lattice

Linming Zhou, Cheng Dai, Peter Meisenheimer, Sujit Das, Yongjun Wu, Yuhui Huang, Javier Junquera, Long-Qing Chen, Ramamoorthy Ramesh, Zijian Hong

PUBLISHED Advanced Functional Materials 32, 2111392 (2022) DOI: 10.1002/adfm.202111392

Electric field control of Chirality

Piush Behera, Molly A. May, Fernando GĂłmez-Ortiz, Sandhya Susarla, Sujit Das, Christopher T. Nelson, Lucas Caretta, Shang-Lin Hsu, Margaret R. McCarter, Benjamin H. Savitzky, Edward S. Barnard, Archana Raja, Zijian Hong, Pablo GarcĂ­a-Fernandez, Stephen W. Lovesey, Gerrit van der Laan, Colin Ophus, Lane W. Martin, Javier Junquera, Markus B. Raschke, Ramamoorthy Ramesh

PUBLISHED Science Advances 8, eabj8030 (2022) DOI: 10.1126/sciadv.abj8030

Tunable switching behaviors and topological phase transitions of a polar vortex supercrystal

Cheng Dai, Vladimir A. Stoica, Sujit Das, Zijian Hong, Lane W. Martin, Ramamoorthy Ramesh, John W. Freeland, Haidan Wen, Venkatraman Gopalan, Long-Qing Chen

PUBLISHED Advanced Materials 34, 2106401 (2022) DOI: 10.1002/adma.202106401

Room-temperature ferromagnetism at an oxide/nitride interface

Qiao Jin, Zhiwen Wang, Qinghua Zhang, Yonghong Yu, Shan Lin, Shengru Chen, Mingqun Qi, He Bai, Amanda Huon, Qian Li, Le Wang, Xinmao Yin, Chi Sin Tang, Andrew T. S. Wee, Fanqi Meng, Jiali Zhao, Jia-Ou Wang, Haizhong Guo, Chen Ge, Can Wang, Wensheng Yan, Tao Zhu, Lin Gu, Scott A. Chambers, Sujit Das, Timothy Charlton, Michael R. Fitzsimmons, Gang-Qin Liu, Shanmin Wang, Kui-juan Jin, Hongxin Yang, Er-Jia Guo

🏆 SELECTED Physical Review Letters 128, 017202 (2022) DOI: 10.1103/PhysRevLett.128.017202

Enhanced Piezoelectricity and Excellent Thermal Stability in Sm3+ Doped BiFeO3-PbTiO3 Ceramics

Xinyu He, Tao Wang, Xudong Li, Sujit Das, Xingjun Liu, Zuhuang Chen

PUBLISHED ACS Applied Electronic Materials (2022) DOI: 10.1021/acsaelm.1c01166

2021

Local negative permittivity and topological phase-transition in polar skyrmions

Sujit Das, Zijian Hong, Vladimir A. Stoica, M. A. P. Gonçalves, Yu-Tsun Shao, Eric Parsonnet, E. J. Marksz, S. Saremi, M. R. McCarter, A. Reynoso, C. J. Long, A. M. Hagerstrom, D. Meyers, V. Ravi, B. Prasad, H. Zhou, Z. Zhang, H. Wen, Fernando Gómez-Ortiz, Pablo García-Fernández, J. Bokor, Jorge Íñiguez, John W. Freeland, N. D. Orloff, Javier Junquera, Long-Qing Chen, Sayeef Salahuddin, David A. Muller, Lane W. Martin, Ramamoorthy Ramesh

🏆 SELECTED Nature Materials 20, 194–201 (2021) DOI: 10.1038/s41563-020-00818-y

Subterahertz collective dynamics of polar vortices

Qian Li, Vladimir A. Stoica, Marek Pasciak, Yi Zhu, Yakun Yuan, Tiannan Yang, Margaret R. McCarter, Sujit Das, Ajay K. Yadav, Suji Park, Cheng Dai, Hyeon Jun Lee, Youngjun Ahn, Samuel D. Marks, Takahiro Sato, Matthias C. Hoffmann, Matthieu Chollet, Michael E. Kozina, Silke Nelson, Diling Zhu, Donald A. Walko, Aaron M. Lindenberg, Paul G. Evans, Long-Qing Chen, Ramamoorthy Ramesh, Lane W. Martin, Venkatraman Gopalan, John W. Freeland, Jirka Hlinka, Haidan Wen

🏆 SELECTED Nature 592, 376–380 (2021) DOI: 10.1038/s41586-021-03342-4

Atomic scale crystal field mapping of the polar vortices in oxide superlattices

Sandhya Susarla, Colin Ophus, Pablo García-Fernández, Sujit Das, Peter Ercius, Lane W. Martin, Ramamoorthy Ramesh, Javier Junquera

🏆 SELECTED Nature Communications 12, 6273 (2021) DOI: 10.1038/s41467-021-26476-5

Electric field manipulation of spins in doped PbTiO3

Junjie Liu, Valentin V. Laguta, Katherine Inzani, Weichuan Huang, Sujit Das, Ruchira Chatterjee, Evan Sheridan, Sinéad M. Griffin, Arzhang Ardavan, Ramamoorthy Ramesh

🏆 SELECTED Science Advances 7, eabf8103 (2021) DOI: 10.1126/sciadv.abf8103

Vortex Domain Walls in Ferroelectrics

Zijian Hong, Sujit Das, Christopher T. Nelson, Ajay K. Yadav, Yan Wu, Javier Junquera, Long-Qing Chen, Lane W. Martin, Ramamoorthy Ramesh

🏆 SELECTED Nano Letters 21, 3533–3539 (2021) DOI: 10.1021/acs.nanolett.1c00404

Correlating surface crystal orientation and gas kinetics in perovskite-oxide electrodes

Ran Gao, Abel Fernandez, Tanmoy Chakraborty, Aileen Luo, David Pesquera, Sujit Das, Gabriel Velarde, Vincent Thoréton, John Kilner, Tatsumi Ishihara, Slavomír Nemšák, Ethan Crumlin, Elif Ertekin, Lane W. Martin

PUBLISHED Advanced Materials 33, 2100977 (2021) DOI: 10.1002/adma.202100977

Strain-induced orbital contributions to oxygen electrocatalysis in transition metal perovskites

Abel Fernandez, Lucas Caretta, Sujit Das, Christoph Klewe, Djamila Lou, Ran Gao, Aileen Luo, Eric Parsonnet, Padraic Shafer, Lane W. Martin

PUBLISHED Advanced Energy Materials 2102175 (2021) DOI: 10.1002/aenm.202102175

Study of disorder in pulsed laser deposited double perovskite oxides by first-principle structure prediction

Edoardo Fertitta, Sujit Das, Debalina Banerjee, Farbod Ebrahimi, Clément Barraud, Kai Du, He Tian, Chris J. Pickard, Cedric Weber, Ramamoorthy Ramesh, Peter Littlewood, David Dubbink

🏆 SELECTED npj Computational Materials 7, 1–8 (2021) DOI: 10.1038/s41524-021-00561-1

Epitaxial ferroelectric with metallic pyrochlore oxide electrodes

Z. Zhang, S.-L. Hsu, V. Stoica, H. Paik, J. Wang, L. Xie, M. Kumari, S. Das, Z. Leng, E. Parsonnet, A. Qualls, M. McBriarty, R. Proksch, A. Gruverman, D. G. Schlom, Long-Qing Chen, S. Salahuddin, L. W. Martin, R. Ramesh

🏆 SELECTED Advanced Materials 33, 2006089 (2021) DOI: 10.1002/adma.202006089

Optical-transparent self-assembled MXene film with high efficient terahertz reflection modulation

Tangdong Feng, Wanxia Huang, Hongfu Zhu, Xueguang Lu, Sujit Das, Qiwu Shi

PUBLISHED ACS Applied Materials & Interfaces 13, 10574–10582 (2021) DOI: 10.1021/acsami.0c20787

The role of epitaxial strain on the electronic and magnetic structure of La0.7Sr0.3MnO3/LaCoO3 bilayers

S. Das, S. Ghosh, R. G. Tanguturi, R. Medwal, S. Gupta, R. K. Dokala, R. Rawat, S. Das, S. Thota

PUBLISHED AIP Advances 11, 125115 (2021) DOI: 10.1063/5.0071572

2020

A new era in ferroelectrics

S. Das, Z. Hong, M. McCarter, P. Shafer, Yu-Tsun Shao, D. A. Muller, L. W. Martin, R. Ramesh

Review APL Materials 8, 120902 (2020) DOI: 10.1063/5.0034914

A Phase Transition Oxide/Graphene Interface for Incident-Angle-Agile, Ultrabroadband, and Deep THz Modulation

Hongfu Zhu, Jiang Li, Lianghui Du, Wanxia Huang, Jingbo Liu, Jinhao Zhou, Yuanfu Chen, Sujit Das, Qiwu Shi, Liguo Zhu, and Cangli Liu

PUBLISHED Advanced Material Interfaces 2001297 (2020) DOI: 10.1002/admi.202001297

Temperature-dependent growth of hexagonal and monoclinic gallium sulfide films by pulsed-laser deposition

Kazutaka Eriguchi, Carlos Biaou, Sujit Das, Kin Man Yu, Junqiao Wu, and Oscar D. Dubon

PUBLISHED AIP Advances 10, 105215 (2020) DOI: 10.1063/5.0021938

Ultralow voltage manipulation of ferromagnetism

Bhagwati Prasad, Yen-Lin Huang, Rajesh V. Chopdekar, Zuhuang Chen, James Steffes, Sujit Das, Qian Li, Mengmeng Yang, Chia-Ching Lin, Tanay Gosavi, D. Nikonov, Zi Qiang Qiu, Lane Martin, Bryan D. Huey, I. Young, Jorge Íñiguez, S. Manipatruni, and R. Ramesh

PUBLISHED Advanced Materials 32, 2001943 (2020) DOI: 10.1002/adma.202001943

Elastic Strain control of Electronic Structure, and Magnetic Properties of [Pr1-xCaxMnO3/SrTiO3]15 Superlattices

Ravi Kiran Dokala, Shaona Das, Deep Chandra Joshi, Sayandeep Ghosh, Zhuo Yan, Yajun Qi, Sujit Das, and Subhash Thota

PUBLISHED Journal of Applied Physics 127, 175303 (2020) DOI: 10.1063/5.0002818

Thickness-dependent magnetization of Ru exchange spring at a La0.7Sr0.3MnO3-SrRuO3 interface

Martin Koch, Lukas Bergmann, Stefano Agrestini, Igor Maznichenko, Ingrid Mertig, Andreas Herklotz, Sujit Das, Diana A. Rata, and Kathrin Dörr

PUBLISHED Phys. Status Solidi B 1900616 (2020) DOI: 10.1002/pssb.201900616

Switching magnetic anisotropy of SrRuO3 by capping-layer-induced octahedral distortions

Shan Lin, Qinghua Zhang, Manuel A. Roldan, Sujit Das, Timothy Charlton, Michael R. Fitzsimmons, Qiao Jin, Sisi Li, Zhenping Wu, Shuang Chen, Haizhong Guo, Xin Tong, Chen Ge, Meng He, Can Wang, Lin Gu, Kui-juan Jin, Er-Jia Guo

PUBLISHED Phys. Rev. Applied 13, 034033 (2020) DOI: 10.1103/PhysRevApplied.13.034033

2019

Versatile and Highly Efficient Controls of Reversible Topotactic Metal-Insulator Transitions in Epitaxial Manganite Films through Proton Intercalation

Shanquan Chen, Haiping Zhou, Xing Ye, Zuhuang Chen, Jinzhao Zhao, Sujit Das, Christoph Klewe, Lei Zhang, Eduardo Lupi, Padraic Shafer, Elke Arenholz, Dun Jin, Haoliang Huang, Yalin Lu, Xiaowen Li, Meng Wu, Shanming Ke, Hu Xu, Xierong Zeng, Chuanwei Huang, Lane Martin, and Lang Chen

PUBLISHED Advanced Functional Materials 29, 1907072 (2019) DOI: 10.1002/adfm.201907072

Mechanical-Force Induced Non-Local, Collective Ferroelastic Switching in Ferroelectric Epitaxial Thin Films

Xiaoyan Lu, Zuhuang Chen, Ye Cao, Yunlong Tang, Ruijuan Xu, Sahar Saremi, Zhan Zhang, Yongqi Dong, Sujit Das, Hangbo Zhang, Limei Zheng, Weiming Lv, Jiangyu Li, Lang Chen, Hui Li, Wenwu Cao, and Lane W. Martin

PUBLISHED Nature Communications 10, 3951 (2019) DOI: 10.1038/s41467-019-11825-2

Observation of room temperature polar skyrmions

S. Das, Y. L. Tang, Z. Hong, M. A. P. Gonçalves, M. R. McCarter, C. Klewe, K.X. Nyugen, F. Gómez-Ortiz, P. Shafer, E. Arenholz, V. A. Stoica, S.-L. Hsu, B. Wang, C. Ophus, J. F. Liu, C. T. Nelson, S. Saremi, B. Prasad, A. B. Mei, D. G. Schlom, J. Íñiguez, P. García-Fernández, D.A. Muller, L. Q. Chen, J. Junquera, L. W. Martin and R. Ramesh

🏆 SELECTED Nature 568, 368-372 (2019) DOI: 10.1038/s41586-019-1092-8

Optical Creation of an Oxide Supercrystal with Three-Dimensional Nanoscale Periodicity

V.A. Stoica, N. Laanait, C. Dai, Z. Hong, Y. Yuan, Z. Zhang, S. Lei, M.R. McCarter, A. Yadav, A. R. Damodaran, S. Das, G.A. Stone, J. Karapetrova, D.A. Walko, X. Zhang, L. W. Martin, R. Ramesh, L.-Q. Chen, H. Wen, V. Gopalan, and J.W. Freeland

🏆 SELECTED Nature Materials 18, 377-383 (2019) DOI: 10.1038/s41563-019-0311-x Cover article

Observation of Spatially Resolved Steady State Negative Capacitance

Ajay K. Yadav, Kayla X. Nguyen, Zijian Hong, Pablo García-Fernández, Pablo Aguado-Puente, Christopher T. Nelson, Sujit Das, Bhagwati Prasad, Daewoong Kwon, Suraj Cheema, Asif I. Khan, Jorge Íñiguez, Javier Junquera, Long-Qing Chen, David A. Muller, Ramamoorthy Ramesh, Sayeef Salahuddin

🏆 SELECTED Nature 565, 468-471 (2019) DOI: 10.1038/s41586-018-0855-y

Low-field switching of non-collinear spin textures at La0.7Sr0.3MnO3-SrRuO3 interfaces

S. Das, A.D. Rata, I.V. Maznichenko, S. Agrestini, E. Pippel, K. Chen, E. Pellegrin, S. M. Valvidares, H. B. Vasili, J. Herrero-Martin, K. Nenkov, A. Herklotz, A. Ernst, I. Mertig, Z. Hu, and K. Dörr

🏆 SELECTED Phys. Rev. B 99, 024416 (2019) DOI: 10.1103/PhysRevB.99.024416

Low-temperature Anomalous Spin Correlations and Kondo Effect in Ferromagnetic SrRuO3/LaNiO3/ La0.7Sr0.3MnO3 Trilayers

S. Ghosh, R. G. Tanguturi, D. C. Joshi, P. Pramanik, S. Singh, R. Rawat, R. J. Choudhury, P.K. Mishra, S. Das, S. Thota

PUBLISHED Phys. Rev. B 99, 115135 (2019) DOI: 10.1103/PhysRevB.99.115135

Shear Strain-induced Anisotropic Domain Evolution in Mixed-Phase BiFeO3 Epitaxial Films

Han Xu, Zuhuang Chen, Xiaoyi Zhang, Yongqi Dong, Bin Hong, Jiangtao Zhao, Lang Chen, Sujit Das, Chen Gao, Changgan Zeng, Haidan Wen and Zhenlin Luo

PUBLISHED AIP Advances 9, 025114 (2019) DOI: 10.1063/1.5080709

2018

Unexpected Termination Switching and Polarity Compensation in LaAlO3/SrTiO3 heterostructures

Guneeta Singh-Bhalla, Pim B. Rossen, Gunnar K. Pálsson, Matthew Mecklenburg, Thomas Orvis, Sujit Das, Yun-Long Tang, Jaganatha S. Suresha, Di Yi, Abhigyan Dasgupta, David Doenning, Victor G. Ruiz, Ajay K. Yadav, Morgan Trassin, John T. Heron, Charles S. Fadley, Rossitza Pentcheva, Jayakanth Ravichandran, and Ramamoorthy Ramesh

PUBLISHED Phys. Rev. Materials 2, 112001(R) (2018) DOI: 10.1103/PhysRevMaterials.2.112001

Emergent topologies in oxide superlattices

S. Das, A. Ghosh, M. R. MacCarter, S. L. Hsu, Y.L. Tang, R. Ramesh, and L. W. Martin

Review APL Materials 6, 100901 (2018) DOI: 10.1063/1.5046100

Structural and Magnetic Properties of La0.7Sr0.3MnO3/LaCoO3 Heterostructures

S. Thota, K. Roychowdhury, V. Thakre, S. C. Ganguly, Z.H. Chen, E. J. Guo, and S. Das

🏆 SELECTED Appl. Phys. Lett. 113, 122405 (2018) DOI: 10.1063/1.5045359

Complex Strain Evolution of Polar and Magnetic Order and Control of Spin Orientation in Multiferroic BiFeO3 Thin Films

Zuhuang Chen, Zhanghui Chen, Chang-Yang Kuo, Yunlong Tang, Liv R. Dedon, James D. Clarkson, Alan Farhan, Qian Li, Mengmeng Yang, Yen-Lin Huang, Sujit Das, Bhagwati Prasad, A. Tanaka, Elke Arenholz, Andreas Scholl, Ying-Hao Chu, Z. Q. Qiu, Zhiwei Hu, Liu-Hao Tjeng, Ramamoorthy Ramesh, Lin-Wang Wang, and Lane W. Martin

PUBLISHED Nature Communications 9, 3764 (2018) DOI: 10.1038/s41467-018-06190-5

Interfacial magnetism in La0.7Sr0.3MnO3/LaNiO3 ultrathin superlattices

Sujit Das, Sayandeep Ghosh, Prativa Pramanik, Deep Chandra Joshi and Subhash Thota

PUBLISHED J. Phys. D 51, 325001 (2018) DOI: 10.1088/1361-6463/aacfd4

2017

Finite-size Scaling, Exchange-Bias and Antiferromagnetic Coupling in SrRuO3/LaNiO3 / SrRuO3 Trilayers

S. Thota, S. Ghosh, S. Nayak, D. C. Joshi, P. Pramanik, K. Roychowdhury, and S. Das

PUBLISHED J. Appl. Phys. 122, 124304 (2017) DOI: 10.1063/1.5004130

Carrier driven coupling in ferromagnetic oxide heterostructures

Ching-Hao Chang, Angus Huang, Sujit Das, Sanjeev Kumar, and R. Ganesh

PUBLISHED Phys. Rev. B 96, 184408 (2017) DOI: 10.1103/PhysRevB.96.184408

2015

Strain dependence of the antiferromagnetic interface coupling in La0.7Sr0.3MnO3/SrRuO3 superlattice

Sujit Das, Andreas Herklotz, Eckhard Pippel, Er-Jia Guo, Diana Rata and Kathrin Dörr

🏆 SELECTED Phys. Rev. B 91, 134405 (2015) DOI: 10.1103/PhysRevB.91.134405

Strain-induced improvement of retention loss in PbZr0.2Ti0.8O3 films

E. J. Guo, R. Roth, S. Das, A. Herklotz, and K. Dörr

PUBLISHED Appl. Phys. Lett. 106, 072904 (2015) DOI: 10.1063/1.4913421

2014

Static and reversible elastic strain effects on magnetic order of La0.7Ca0.3MnO3/SrTiO3 superlattices

Sujit Das*, Andreas Herklotz, Er Jia Guo, and Kathrin Dörr

PUBLISHED Journal of Applied Physics 115, 143902 (2014) DOI: 10.1063/1.4870953

Strain induced low mechanical switching force in ultrathin PbZr0.2Ti0.8O3 films

E. J. Guo, R. Roth, S. Das, and K. Dörr

PUBLISHED Appl. Phys. Lett. 105, 012903 (2014) DOI: 10.1063/1.4889892

Enhancement of switching speed of BiFeO3 capacitors by magnetic fields

E. J. Guo, S. Das, and A. Herklotz

PUBLISHED APL Materials 2, 096107 (2014) DOI: 10.1063/1.4894758

2013

Tuning the switching time of BiFeO3 capacitors by electrodes conductivity

E. J. Guo, A. Herklotz, R. Roth, M. Christl, S. Das, W. Widdra and K. Dörr

PUBLISHED Appl. Phys. Lett. 103, 022905 (2013) DOI: 10.1063/1.4813419