Results 21 to 30 of about 74,381 (146)

Overcoming Size Effects in Ferroelectric Thin Films

Advanced Physics Research, 2023
Ferroelectric thin films have recently received unprecedented attention due to the need to miniaturize electronic circuit devices. Synthesis and deposition processes along with theoretical calculations are improved remarkably to realize stable ...
Sung Hyuk Park, Jae Young Kim, Jae Yong Song, Ho Won Jang   +3 more
doaj   +1 more source

Electronic ferroelectricity in monolayer graphene moiré superlattices. [PDF]

Nat Commun
Extending ferroelectric materials to two-dimensional limit provides versatile applications for the development of next-generation nonvolatile devices.
Zhang L, Ding J, Xiang H, Liu N, Zhou W, Wu L, Xin N, Watanabe K, Taniguchi T, Xu S.   +9 more
europepmc   +2 more sources

Ab Initio Study of Ferroelectric Critical Size of SnTe Low-Dimensional Nanostructures

Nanomaterials, 2020
Beyond a ferroelectric critical thickness of several nanometers existed in conventional ferroelectric perovskite oxides, ferroelectricity in ultimately thin dimensions was recently discovered in SnTe monolayers.
Takahiro Shimada, Koichiro Minaguro, Tao Xu, Jie Wang, Takayuki Kitamura   +4 more
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An antisite defect mechanism for room temperature ferroelectricity in orthoferrites

Nature Communications, 2021
Ferroelectricity in orthoferrite perovskites has stimulated intense research, but the mechanism remains unclear. Here, the authors propose an antisite defect mechanism for introducing ferroelectricity in magnetically ordered YFeO3 and the family of rare ...
Shuai Ning, Abinash Kumar, Konstantin Klyukin, Eunsoo Cho, Jong Heon Kim, Tingyu Su, Hyun-Suk Kim, James M. LeBeau, Bilge Yildiz, Caroline A. Ross   +9 more
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Lead-free hybrid perovskite N(CH3)4SnI3 with robust ferroelectricity induced by large and non-polar N(CH3)4 + molecular cation

Nature Communications, 2021
The ferroelectricity in hybrid perovskite CH3NH3PbI3 is under debate. Here, the authors predict a Pb-free hybrid perovskite N(CH3)4SnI3 with non-polar molecular cation N(CH3)4+ showing strong ferroelectricity, good stability, and high visible-light ...
Hai Wei, Yali Yang, Shiyou Chen, H. J. Xiang   +3 more
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Evolution of crystallographic structure and ferroelectricity of Hf0.5Zr0.5O2 films with different deposition rate

AIP Advances, 2020
Hf0.5Zr0.5O2 films are one of the most attractive HfO2-based ferroelectric films because of good ferroelectricity, extreme thinness, and excellent compatibility with silicon devices.
Taeho Kim, Minho An, Sanghun Jeon
doaj   +1 more source

Visualizing moiré ferroelectricity via plasmons and nano-photocurrent in graphene/twisted-WSe2 structures

Nature Communications, 2023
Ferroelectricity, a spontaneous and reversible electric polarization, is found in certain classes of van der Waals (vdW) materials. The discovery of ferroelectricity in twisted vdW layers provides new opportunities to engineer spatially dependent ...
Shuai Zhang, Yang Liu, Zhiyuan Sun, Xinzhong Chen, Baichang Li, S. L. Moore, Song Liu, Zhiying Wang, S. E. Rossi, Ran Jing, Jordan Fonseca, Birui Yang, Yinming Shao, Chun-Ying Huang, Taketo Handa, Lin Xiong, Matthew Fu, Tsai-Chun Pan, Dorri Halbertal, Xinyi Xu, Wenjun Zheng, P. J. Schuck, A. N. Pasupathy, C. R. Dean, Xiaoyang Zhu, David H. Cobden, Xiaodong Xu, Mengkun Liu, M. M. Fogler, James C. Hone, D. N. Basov   +30 more
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Room temperature ferroelectricity in monolayer graphene sandwiched between hexagonal boron nitride. [PDF]

Nat Commun
The ferroelectricity in stacked van der Waals multilayers through interlayer sliding holds great promise for ultrathin high-density memory devices, yet mostly subject to weak polarization and cryogenic operating condition.
Lin F, Xuan X, Cao Z, Zhang Z, Liu Y, Xue M, Hang Y, Liu X, Zhao Y, Gao L, Guo W, Liu Y.   +11 more
europepmc   +2 more sources

Ferroelectric columnar assemblies from the bowl-to-bowl inversion of aromatic cores

Nature Communications, 2021
Organic ferroelectrics are of potential use in state-of-the-art ferroelectric devices but mechanistic insight in generating ferroelectricity remains limited.
Shunsuke Furukawa, Jianyun Wu, Masaya Koyama, Keisuke Hayashi, Norihisa Hoshino, Takashi Takeda, Yasutaka Suzuki, Jun Kawamata, Masaichi Saito, Tomoyuki Akutagawa   +9 more
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Improper electric polarization in simple perovskite oxides with two magnetic sublattices

Nature Communications, 2017
Magnetically-driven ferroelectricity holds the key for novel multiferroic effects in perovskite oxides, but it remains poorly understood. Here, Zhaoet al.
Hong Jian Zhao, L. Bellaiche, Xiang Ming Chen, Jorge Íñiguez   +3 more
doaj   +1 more source