Results 131 to 140 of about 204,595 (365)

Ga-substitution effects on the improper ferroelectric phase transition of Ca8[AlO2]12(MoO4)2

Open Ceramics, 2021
The aluminum-sodalite-type oxide, Ca8[AlO2]12(MoO4)2, shows an improper ferroelectricity below a ferroelectric phase transition temperature around 630 ​K. Here we present effects of a Ga-substitution for Al on ferroelectric properties of Ca8[AlO2]12(MoO4)
Koji Maruyama, Akitoshi Nakano, Ichiro Terasaki, Hiroki Taniguchi   +3 more
doaj  

High Performance Room Temperature Multiferroic Properties of w‐MnSe Altermagnet

Advanced Functional Materials, EarlyView.
Using first‐principles calculations, for the first time the Altermagneto‐Ferroelectric Coupling Effect (AFCE) is proposed, which enables control of both electric polarization and spin splitting in the band structure due to polyhedral rotations. This uncovers robust multiferroicity in wurtzite MnSe at room temperature, offering an exciting route for ...
Djamel Bezzerga, Imran Khan, Jisang Hong
wiley   +1 more source

Ferroelectricity‐Enhanced Piezo‐Phototronic Effect in 2D V‐Doped ZnO Nanosheets

Advanced Science, 2019
Emerging 2D electronic materials have shown great potential for regulating and controlling optoelectronic processes. A 2D ferroelectric semiconductor coupled with the piezo‐phototronic effect may bring unprecedented functional characteristics.
Yejing Dai, Changsheng Wu, Zhiyi Wu, Zhihao Zhao, Li Li, Yang Lu, Zhong Lin Wang   +6 more
doaj   +1 more source

Defects in Inorganic Mechanoluminescent Phosphors: Insights and Impacts

Advanced Functional Materials, EarlyView.
Mechanoluminescence is attracting more attention recently, and defect dominates mechanoluminescence performances. Investigating how defects work in the mechanoluminescence process is crucial for elucidating its complex luminescence mechanism. This review aims to emphasize the fundamental role of defects in mechanoluminescence, which offers an ...
Wenhao Li, Sheng Wu, Jing Ren, Puxian Xiong   +3 more
wiley   +1 more source

Intrinsic Two-Dimensional Ferroelectricity with Dipole Locking.

Physical Review Letters, 2018
Out-of-plane ferroelectricity with a high transition temperature in ultrathin films is important for the exploration of new domain physics and scaling down of memory devices.
Jun Xiao, Hanyu Zhu, Ying Wang, W. Feng, Yunxia Hu, A. Dasgupta, Yimo Han, Yuang Wang, D. Muller, L. Martin, P. Hu, Xiang Zhang   +11 more
semanticscholar   +1 more source

Thermodynamic Theory of Proximity Ferroelectricity

Physical Review X
Proximity ferroelectricity has recently been reported as a new design paradigm for inducing ferroelectricity, where a nonferroelectric polar material becomes a ferroelectric one by interfacing with a thin ferroelectric layer.
Eugene A. Eliseev, Anna N. Morozovska, Jon-Paul Maria, Long-Qing Chen, Venkatraman Gopalan   +4 more
doaj   +1 more source

Twin Domains in Organometallic Halide Perovskite Thin-Films

Crystals, 2018
The perovskite is a class of material with crystalline structure similar to CaTiO3. In recent years, the organic-inorganic hybrid metallic halide perovskite has been widely investigated as a promising material for a new generation photovoltaic device ...
Wei Liu, Yang Liu, Ju Wang, Cuncun Wu, Congyue Liu, Lixin Xiao, Zhijian Chen, Shufeng Wang, Qihuang Gong   +8 more
doaj   +1 more source

Modulating Oxide‐Based Quantum Materials by Ion Implantation

Advanced Functional Materials, EarlyView.
This review highlights how ion implantation, a well developed chip‐technology, enables targeted modulation of oxide‐based quantum materials. This includes tuning of metal‐insulator transitions, magnetism, and superconductivity through selective doping, defect creation, and induced lattice strain. Abstract Ion implantation has emerged as a powerful tool
Andreas Herklotz, Thomas Zac Ward, Shengqiang Zhou   +2 more
wiley   +1 more source

Near‐Field Optical Detection of Defect‐Stabilized Metallic Islands at the Verwey Transition in Fe3O4

Advanced Functional Materials, EarlyView.
Nanoscale metallic islands emerging across the Verwey transition in thin films of Fe3O4 are imaged using near‐field optical microscopy from mid‐infrared to terahertz frequencies. Recurring across thermal cycles, these disorder‐stabilized islands exhibit distinct transition temperatures.
Kajal Tiwari, Mostafa Ibrahim Shehata Marzouk, Ke Xiao, Malleswararao Tangi, Stuart Stephen Papworth Parkin   +4 more
wiley   +1 more source

Controlling the helicity of magnetic skyrmions by electrical field in frustrated magnets

New Journal of Physics, 2020
The skyrmions generated by frustration in centrosymmetric structures host extra internal degrees of freedom—vorticity and helicity, resulting in distinctive properties and potential functionality, which are not shared by the skyrmions stemming from the ...
Xiaoyan Yao, Jun Chen, Shuai Dong
doaj   +1 more source