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Your search keyword '"Nan, Ce ‐ Wen"' showing total 451 results
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451 results on '"Nan, Ce ‐ Wen"'

1. Flexomagnetoelectric effect in Sr2IrO4 thin films

Author

Liu, Xin, Hu, Ting, Zhang, Yujun, Xu, Xueli, Wu, Biao, Ma, Zongwei, Lv, Peng, Zhang, Yuelin, Huang, Shih-Wen, Wu, Jialu, Ma, Jing, Hong, Jiawang, Sheng, Zhigao, Jia, Chenglong, Kan, Erjun, Nan, Ce-Wen, and Zhang, Jinxing

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

Symmetry engineering is explicitly effective to manipulate and even create phases and orderings in strongly correlated materials. Flexural stress is universally practical to break the space-inversion or time-reversal symmetry. Here, by introducing strain gradient in a centrosymmetric antiferromagnet Sr2IrO4, the space-inversion symmetry is broken accompanying a non-equivalent O p-Ir d orbital hybridization along z axis. Thus, emergent polar phase and out-of-plane magnetic moment have been simultaneously observed in these asymmetric Sr2IrO4 thin films, which both are absent in its ground state. Furthermore, upon the application of magnetic field, such polarization can be controlled by modifying the occupied d orbitals through spin-orbit interaction, giving rise to a flexomagnetoelectric effect. This work provides a general strategy to artificially design multiple symmetries and ferroic orderings in strongly correlated systems.

Published
2024

2. A correlated ferromagnetic polar metal by design

Author

Zhang, Jianbing, Shen, Shengchun, Puggioni, Danilo, Wang, Meng, Sha, Haozhi, Xu, Xueli, Lyu, Yingjie, Peng, Huining, Xing, Wandong, Walters, Lauren N., Liu, Linhan, Wang, Yujia, Hou, De, Xi, Chuanying, Pi, Li, Ishizuka, Hiroaki, Kotani, Yoshinori, Kimata, Motoi, Nojiri, Hiroyuki, Nakamura, Tetsuya, Liang, Tian, Yi, Di, Nan, Tianxiang, Zang, Jiadong, Sheng, Zhigao, He, Qing, Zhou, Shuyun, Nagaosa, Naoto, Nan, Ce-Wen, Tokura, Yoshinori, Yu, Rong, Rondinelli, James M., and Yu, Pu

Published
2024
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3. Multifunctional magnetic oxide-MoS$_2$ heterostructures on silicon

Author

Yang, Allen Jian, Wu, Liang, Liu, Yanran, Zhang, Xinyu, Han, Kun, Huang, Ying, Li, Shengyao, Loh, Xian Jun, Zhu, Qiang, Su, Rui, Nan, Ce-Wen, and Wang, X. Renshaw

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Applied Physics
Abstract

Correlated oxides and related heterostructures are intriguing for developing future multifunctional devices by exploiting their exotic properties, but their integration with other materials, especially on Si-based platforms, is challenging. Here, van der Waals heterostructures of La$_{0.7}$Sr$_{0.3}$MnO$_3$ (LSMO), a correlated manganite perovskite, and MoS$_2$ are demonstrated on Si substrates with multiple functions. To overcome the problems due to the incompatible growth process, technologies involving freestanding LSMO membranes and van der Waals force-mediated transfer are used to fabricate the LSMO-MoS$_2$ heterostructures. The LSMO-MoS$_2$ heterostructures exhibit a gate-tunable rectifying behavior, based on which metal-semiconductor field-effect transistors (MESFETs) with on-off ratios of over 104 can be achieved. The LSMO-MoS$_2$ heterostructures can function as photodiodes displaying considerable open-circuit voltages and photocurrents. In addition, the colossal magnetoresistance of LSMO endows the LSMO-MoS$_2$ heterostructures with an electrically tunable magnetoresponse at room temperature. This work not only proves the applicability of the LSMO-MoS$_2$ heterostructure devices on Si-based platform but also demonstrates a paradigm to create multifunctional heterostructures from materials with disparate properties.

Published
2023
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5. Deep Learning Illuminates Spin and Lattice Interaction in Magnetic Materials

Author

Yang, Teng, Cai, Zefeng, Huang, Zhengtao, Tang, Wenlong, Shi, Ruosong, Godfrey, Andy, Liu, Hanxing, Lin, Yuanhua, Nan, Ce-Wen, Ye, Meng, Zhang, LinFeng, Wang, Han, and Xu, Ben

Subjects
Condensed Matter - Materials Science
Abstract

Atomistic simulations hold significant value in clarifying crucial phenomena such as phase transitions and energy transport in materials science. Their success stems from the presence of potential energy functions capable of accurately depicting the relationship between system energy and lattice changes. In magnetic materials, two atomic scale degrees of freedom come into play: the lattice and the spin. However, accurately tracing the simultaneous evolution of both lattice and spin in magnetic materials at an atomic scale is a substantial challenge. This is largely due to the complexity involved in depicting the interaction energy precisely, and its influence on lattice and spin-driving forces, such as atomic force and magnetic torque, which continues to be a daunting task in computational science. Addressing this deficit, we present DeepSPIN, a versatile approach that generates high-precision predictive models of energy, atomic forces, and magnetic torque in magnetic systems. This is achieved by integrating first-principles calculations of magnetic excited states with deep learning techniques via active learning. We thoroughly explore the methodology, accuracy, and scalability of our proposed model in this paper. Our technique adeptly connects first-principles computations and atomic-scale simulations of magnetic materials. This synergy presents opportunities to utilize these calculations in devising and tackling theoretical and practical obstacles concerning magnetic materials.

Published
2023

6. Anomalous Thermal Transport of SrTiO$_3$ Driven by Anharmonic Phonon Renormalization

Author

Han, Jian, Lin, Changpeng, Nan, Ce-wen, Lin, Yuan-hua, and Xu, Ben

Subjects
Condensed Matter - Materials Science
Abstract

SrTiO$_3$ has been extensively investigated owing to its abundant degrees of freedom for modulation. However, the microscopic mechanism of thermal transport especially the relationship between phonon scattering and lattice distortion during the phase transition are missing and unclear. Based on deep-potential molecular dynamics and self-consistent \textit{ab initio} lattice dynamics, we explore the lattice anharmonicity-induced tetragonal-to-cubic phase transition and explain this anomalous behavior during the phase transition. Our results indicate the significant role of the renormalization of third-order interatomic force constants to second-order terms. Our work provides a robust framework for evaluating the thermal transport properties during structural transformation, benefitting the future design of promising thermal and phononic materials and devices.

Published
2023

7. Significant Unconventional Anomalous Hall Effect in Heavy Metal/Antiferromagnetic Insulator Heterostructures

Author

Liang, Yuhan, Wu, Liang, Dai, Minyi, Zhang, Yujun, Zhang, Qinghua, Wang, Jie, Zhang, Nian, Xu, Wei, Zhao, Le, Chen, Hetian, Ma, Ji, Wu, Jialu, Cao, Yanwei, Yi, Di, Ma, Jing, Jiang, Wanjun, Hu, Jia-Mian, Nan, Ce-Wen, and Lin, Yuan-Hua

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Strongly Correlated Electrons
Abstract

The anomalous Hall effect (AHE) is a quantum coherent transport phenomenon that conventionally vanishes at elevated temperatures because of thermal dephasing. Therefore, it is puzzling that the AHE can survive in heavy metal (HM)/antiferromagnetic (AFM) insulator (AFMI) heterostructures at high temperatures yet disappears at low temperatures. In this paper, we report that an unconventional high-temperature AHE in HM/AFMI is observed only around the N\'eel temperature of AFM, with large anomalous Hall resistivity up to 40 n$\Omega$ cm. This mechanism is attributed to the emergence of a noncollinear AFM spin texture with a non-zero net topological charge. Atomistic spin dynamics simulation shows that such a unique spin texture can be stabilized by the subtle interplay among the collinear AFM exchange coupling, interfacial Dyzaloshinski-Moriya interaction, thermal fluctuation, and bias magnetic field.

Published
2023
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31. Enhanced low-temperature proton conductivity in hydrogen-intercalated brownmillerite oxide

Author

Lu, Nianpeng, Zhang, Zhuo, Wang, Yujia, Li, Hao-Bo, Qiao, Shuang, Zhao, Bo, He, Qing, Lu, Sicheng, Li, Cong, Wu, Yongshun, Zhu, Mingtong, Lyu, Xiangyu, Chen, Xiaokun, Li, Zhuolu, Wang, Meng, Zhang, Jingzhao, Tsang, Sze Chun, Guo, Jingwen, Yang, Shuzhen, Zhang, Jianbing, Deng, Ke, Zhang, Ding, Ma, Jing, Ren, Jun, Wu, Yang, Zhu, Junyi, Zhou, Shuyun, Tokura, Yoshinori, Nan, Ce-Wen, Wu, Jian, and Yu, Pu

Published
2022
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37. High-entropy enhanced capacitive energy storage

Author

Yang, Bingbing, Zhang, Yang, Pan, Hao, Si, Wenlong, Zhang, Qinghua, Shen, Zhonghui, Yu, Yong, Lan, Shun, Meng, Fanqi, Liu, Yiqian, Huang, Houbing, He, Jiaqing, Gu, Lin, Zhang, Shujun, Chen, Long-Qing, Zhu, Jing, Nan, Ce-Wen, and Lin, Yuan-Hua

Published
2022
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42. Author Correction: Enhanced low-temperature proton conductivity in hydrogen-intercalated brownmillerite oxide

Author

Lu, Nianpeng, Zhang, Zhuo, Wang, Yujia, Li, Hao-Bo, Qiao, Shuang, Zhao, Bo, He, Qing, Lu, Sicheng, Li, Cong, Wu, Yongshun, Zhu, Mingtong, Lyu, Xiangyu, Chen, Xiaokun, Li, Zhuolu, Wang, Meng, Zhang, Jingzhao, Tsang, Sze Chun, Guo, Jingwen, Yang, Shuzhen, Zhang, Jianbing, Deng, Ke, Zhang, Ding, Ma, Jing, Ren, Jun, Wu, Yang, Zhu, Junyi, Zhou, Shuyun, Tokura, Yoshinori, Nan, Ce-Wen, Wu, Jian, and Yu, Pu

Published
2023
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48. Ferroelectric domain-wall logic units

Author

Wang, Jing, Ma, Jing, Huang, Houbing, Ma, Ji, Jafri, Hasnain Mehdi, Fan, Yuanyuan, Yang, Huayu, Wang, Yue, Chen, Mingfeng, Liu, Di, Zhang, Jinxing, Lin, Yuan-Hua, Chen, Long-Qing, Yi, Di, and Nan, Ce-Wen

Published
2022
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50. Real-space measurement of orbital electron populations for Li1-xCoO2

Author

Shang, Tongtong, Xiao, Dongdong, Meng, Fanqi, Rong, Xiaohui, Gao, Ang, Lin, Ting, Tang, Zhexin, Liu, Xiaozhi, Li, Xinyan, Zhang, Qinghua, Wen, Yuren, Xiao, Ruijuan, Wang, Xuefeng, Su, Dong, Hu, Yong-Sheng, Li, Hong, Yu, Qian, Zhang, Ze, Petricek, Vaclav, Wu, Lijun, Gu, Lin, Zuo, Jian-Min, Zhu, Yimei, Nan, Ce-Wen, and Zhu, Jing

Published
2022
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