Results 41 to 50 of about 205,607 (326)

Optimized Effective Potential Model for the Double Perovskites Sr2-xYxVMoO6 and Sr2-xYxVTcO6

, 2011
In attempt to explore half-metallic properties of the double perovskites Sr2-xYxVMoO6 and Sr2-xYxVTcO6, we construct an effective low-energy model, which describes the behavior of the t2g-states of these compounds.
Aryasetiawan F, Gunnarsson O, I V Solovyev, Kotani T, Pines D, Serrate D, Solovyev I V, Song W, von Barth U   +8 more
core   +1 more source

First-order Raman spectra of double perovskites AB$'{1/2}B$''{1/2}O3

, 2004
First principles computations of Raman intensities were performed for perovskite-family compound CaAl$_{1/2}$Nb$_{1/2}$O$_3$ (CAN). This compound features 1:1 (NaCl-type) ordering of Al and Nb superimposed onto the $b^-b^-c+$ octahedral tilting.
G. A. Smolenskii, G. Kresse, G. Placzek, Hiro-o Hamaguchi, I. G. Siny, I. Levin, J. Maslar, L. E. Cross, M. A. Krivoglaz, M. Born, R. H. Mitchell, S. A. Prosandeev, S. A. Prosandeev, U. Waghmare, W. Hayes   +14 more
core   +1 more source

Altermagnetic perovskites

npj Spintronics
Altermagnet is a class of antiferromagnets, which shows a staggered spin ordering with wave vector ${\bm q}=0$, while its net magnetization is canceled out in the limit of zero relativistic spin-orbit coupling. The simplest case is when the up and down spins are ordered on two crystallographically equivalent sublattice sites within the unit cell that ...
Makoto Naka, Yukitoshi Motome, Hitoshi Seo   +2 more
openaire   +3 more sources

Biological impact of lead from halide perovskites reveals the risk of introducing a safe threshold

Nature Communications, 2020
Halide perovskites are promising for next generation photovoltaic technology but their environmental impact has not been fully evaluated. Here Li et al.
Junming Li, Hai-Lei Cao, Wen-Bin Jiao, Qiong Wang, Mingdeng Wei, Irene Cantone, Jian Lü, Antonio Abate   +7 more
doaj   +1 more source

Perovskite oxides as transparent semiconductors: a review

Nano Convergence, 2020
Traditional transparent conducting oxides (TCOs) have been widely used for various optoelectronic applications, but have the trade-off between conductivity and transmittance.
Haiying He, Zhihao Yang, Yonghang Xu, Andrew T. Smith, Guangguang Yang, Luyi Sun   +5 more
doaj   +1 more source

A Review of Three-Dimensional Tin Halide Perovskites as Solar Cell Materials

Materials Research, 2022
Thin film solar cell materials such as 3D metal halide perovskites are cheaper alternatives to silicon. Presently, the conversion efficiency of 3D lead halide perovskites is 25.5% (2021), which represents an increase of more than 550% since their ...
M. Dawson, C. Ribeiro, M. R. Morelli
doaj   +1 more source

Low energy paths for octahedral tilting in inorganic halide perovskites

, 2018
Instabilities relating to cooperative octahedral tilting is common in materials with perovskite structures, and in particular in the sub class of halide perovskites.
Klarbring, Johan
core   +1 more source

Jahn-Teller, polarity and insulator-to-metal transition in BiMnO3 at high pressure [PDF]

, 2014
The interaction of coexisting structural instabilities in multiferroic materials gives rise to intriguing coupling phenomena and extraordinarily rich phase diagrams, both in bulk materials and strained thin films.
Bordet, Pierre, Bouvier, Pierre, Darie, Céline, Goujon, Céline, Guennou, Mael, Hanfland, Michael, Kreisel, Jens, Toulemonde, Pierre   +7 more
core   +5 more sources

Actively Tunable “Single Peak/Broadband” Absorbent, Highly Sensitive Terahertz Smart Device Based on VO₂

Micromachines
In recent years, the development of terahertz (THz) technology has attracted significant attention. Various tunable devices for THz waves (0.1 THz–10 THz) have been proposed, including devices that modulate the amplitude, polarization, phase, and ...
Baodian Fan, Hao Tang, Pinghui Wu, Yu Qiu, Linqin Jiang, Lingyan Lin, Jianzhi Su, Bomeng Zhou, Miao Pan   +8 more
doaj   +1 more source

Enabling low-drift flexible perovskite photodetectors by electrical modulation for wearable health monitoring and weak light imaging

Nature Communications, 2023
Metal halide perovskites are promising for next-generation flexible photodetectors owing to their low-temperature solution processability, mechanical flexibility, and excellent photoelectric properties. However, the defects and notorious ion migration in
Yingjie Tang, Peng Jin, Yan Wang, Dingwei Li, Yitong Chen, Peng Ran, Wei Fan, Kun Liang, Huihui Ren, Xuehui Xu, Rui Wang, Yang (Michael) Yang, Bowen Zhu   +12 more
doaj   +1 more source