Results 71 to 80 of about 684 (200)

Switching Dynamics and Improved Efficiency of Free‐Standing Antiferroelectric Capacitors

Advanced Electronic Materials
The switching dynamics of antiferroelectric lead zirconate (PbZrO3) freestanding capacitors compared to their epitaxial counterparts is reported. Frequency dependence of hysteresis indicates that freestanding capacitors exhibit a lower dispersion of ...
Umair Saeed, David Pesquera, Ying Liu, Ignasi Fina, Saptam Ganguly, José Santiso, Jessica Padilla‐Pantoja, José Manuel Caicedo Roque, Xiaozhou Liao, Gustau Catalan   +9 more
doaj   +1 more source

Wake‐Up and Fatigue under Electrical Cycling in HfO2‐Based Ferroelectrics: Mechanisms and Strategies toward Reliable Devices

Advanced Science, EarlyView.
HfO2‐based ferroelectrics exhibit wake‐up and fatigue behaviors during electrical cycling, significantly affecting device endurance and reliability. These phenomena are governed by defect dynamics, including oxygen vacancy redistribution and charge trapping.
Hongseok Kim, Shinhyeong Lee, Hyojun Choi, Minseung Park, Hyunah Cho, Min Hyuk Park, Yunseok Kim   +6 more
wiley   +1 more source

Light‐Driven Control of Polar Order in Ferroelectric Nematic Liquid Crystals

Angewandte Chemie, EarlyView.
Light‐responsive ferroelectric nematics are achieved by molecularly matching azobenzene photo‐switches to the polar packing motif of DIO. This design yields intrinsically photo‐responsive ferroelectric nematic mesogens and optically addressable DIO blends, in which light reversibly modulates spontaneous polarization and switches between high‐ and low ...
Anjali Devi Das, Xiuhu Zhao, Dibyojeet Bagchi, Kennice Brennan, Danqing Liu, Ghislaine Vantomme   +5 more
wiley   +2 more sources

Size‐Induced Ferroelectricity in Antiferroelectric Oxide Membranes [PDF]

, 2023
Despite extensive studies on size effects in ferroelectrics, how structures and properties evolve in antiferroelectrics with reduced dimensions still remains elusive.
Yu‐Tsun Shao, Lucas Caretta, Hua Zhou, Yin Liu, Edward S. Barnard, Rémi Arras, Sergey Prosandeev, Martin, Lane W, Ramesh, Ramamoorthy, Cao, Hui, Melody M. Wang, Laurent Bellaiche, Khandelwal, Aarushi, Hui Cao, Prosandeev, Sergey, Zhou, Hua, Gu, X Wendy, Kim, Woo Jin, Xu, Ruijuan, Archana Raja, Megha Acharya, Harbola, Varun, David A. Muller, Kinnary Y. Patel, Kevin J. Crust, X. Wendy Gu, Arras, Rémi, Hwang, Harold Y, Wang, Melody M, Muller, David A, Barnard, Edward S, Patel, Kinnary Y, Ramamoorthy Ramesh, Shao, Yu‐Tsun, Crust, Kevin J, Woo Jin Kim, Ruijuan Xu, Acharya, Megha, Raja, Archana, Bellaiche, Laurent, Liu, Yin, Aarushi Khandelwal, Harold Y. Hwang, Lane W. Martin, Caretta, Lucas, Varun Harbola, Piush Behera, Behera, Piush   +47 more
core   +1 more source

Electric‐Field‐Controlled Interconversion of Antiferromagnetic States in a Two‐Dimensional Antiferroelectric Halide Perovskite

Advanced Science, EarlyView.
Electric‐field‐controlled antiferroelectric switching offers a ferroic pathway for reversible interconversion between symmetry‐distinct antiferromagnetic states in a two‐dimensional halide perovskite. A spin‐split altermagnet transforms into a spin‐degenerate type‐IV antiferromagnet through field‐driven structural symmetry reconstruction, enabling ...
Wan Zhao, Xiaodong Zhou, Tao Zhu, Jie Chen, Hang Li, Jingyan Chen, Meiling Xu, Wenhong Wang   +7 more
wiley   +1 more source

The strain-induced transitions of the piezoelectric, pyroelectric, and electrocaloric properties of the CuInP2S6 films

AIP Advances, 2023
Low-dimensional ferroelectrics, ferrielectrics, and antiferroelectrics are of urgent scientific interest due to their unusual polar, piezoelectric, electrocaloric, and pyroelectric properties.
Anna N. Morozovska, Eugene A. Eliseev, Lesya P. Yurchenko, Valentyn V. Laguta, Yongtao Liu, Sergei V. Kalinin, Andrei L. Kholkin, Yulian M. Vysochanskii   +7 more
doaj   +1 more source

Programmable Guest‐Induced 5‐Phase‐Transition Topological Reconstructions of Cobalt Formate Metal–Organic Frameworks

Advanced Science, EarlyView.
A reversible five‐phase topological cycle is achieved in a minimalist cobalt formate metal–organic framework. The amorphous phase functions as a programmable reactive hub, selectively reconstructing into four distinct crystalline architectures through cationic templates, humidity, or CO2.
Zhiyu Tao, Jingjian Li, Jing Ling, Tianxiang Chen, Wing‐Yiu Yu, Cong Lin, Tsz Woon Benedict Lo   +6 more
wiley   +1 more source

Shear‐Mode Direct Piezoelectric Response of Ferroelectric Nematic Liquid Crystals

Advanced Science, EarlyView.
Periodic shear‐induced electric current measurements are reported on two archetypic ferroelectric nematic liquid crystal compounds. From the temperature, frequency and shear angle dependent results of the first and second harmonic current signals together with temperature and oscillatory rheology measurements, the effective piezoelectric coupling ...
Péter Salamon, Marcell Tibor Máthé, Hiroya Nishikawa, Fumito Araoka, Antal Jákli   +4 more
wiley   +1 more source

Sliding Ferroelectric Metals: An Emerging Frontier

Advanced Science, EarlyView.
This Perspective highlights recent advances in sliding ferroelectric metals, focusing on the coexistence of switchable polarization and metallicity. Representative nonmagnetic and magnetic systems are discussed, together with Berry‐curvature memory, superconducting switching, triply‐coupled switching, magnetoelectric coupling, and electrically ...
Ying Yang, Zhenzhou Guo, Xia Cheng, Xiaotian Wang   +3 more
wiley   +1 more source

Gapless phason in an antiferroelectric liquid crystal [PDF]

Physical Review Letters, 1993
The dynamics of liquid crystals is in certain respects richer than the dynamics of 3D periodic solids. In con­ trast to these systems, many liquid crystalline phases ex­ hibit a continuous rotational symmetry, which can be broken at the transition to phases of lower symmetry.
Muševič, I., Blinc, R., Žekš, B., Čopič, M., Wittebrood, M., Rasing, Th., Orihara, H., Ishibashi, Y.   +7 more
openaire   +5 more sources