69 citations · 141 across the 7 of their papers we have counts for
7 papers
Lattice dynamics and ferroelectric properties of the nitride perovskite
Yue-Wen Fang, Craig A. J. Fisher, Akihide Kuwabara +5
Using first-principles calculations we examine the crystal structures and phase transitions of nitride perovskite LaWN. Lattice dynamics calculations indicate that the ground-s…
Microscopic dynamics of lithium diffusion in single crystal of the solid-state electrolyte LaLiTiO () studied by quasielastic neutron scattering
Masato Matsuura, Yasuyuki Fujiwara, Hiroki Moriwake +2
Quasielastic neutron scattering (QENS) measurements combined with first principles based moleculardynamics calculations were conducted to study the dynamics of Li ions in a sol…
Weak Ferroelectricity in n = 2 pseudo Ruddlesden-Popper-type niobate Li2SrNb2O7
Takayuki Nagai, Hirokazu Shirakuni, Akitoshi Nakano +4
Li2SrNb2O7 (LSNO) crystallizes in a structure closely related to n = 2 Ruddlesden-Popper-type compounds, which is gen-erally formed by intergrowth of 2-dimensional perovskite-type…
Investigation of Room Temperature Ferroelectricity and Ferrimagnetism in Multiferroic AlxFe2-xO3 Epitaxial Thin Films
Badari Narayana Rao, Shintaro Yasui, Tsukasa Katayama +4
Multiferroic materials open up the possibility to design novel functionality in electronic devices, with low energy consumption. However, there are very few materials that show mul…
Improper ferroelectricity in stuffed aluminate sodalites for pyroelectric energy harvesting
Yusaku Maeda, Toru Wakamatsu, Ayako Konishi +6
Ferroelectricity in stuffed aluminate sodalites is demonstrated in the present study. The present results indicate that stuffed aluminate sodalites exhibit excellent performance as…
An Unconventional Phase Transition in BaAl2O4 Driven by Two Competing Soft Modes
Y. Ishii, S. Mori, Y. Nakahira +4
We investigated the temperature dependence of the superlattice intensity and thermal diffuse scattering intensity of BaAl2O4, which has a network structure with corner-sharing AlO4…
Ferroelectricity Driven by Twisting of Silicate Tetrahedral Chains
Hiroki Taniguchi, Akihide Kuwabara, Jungeun Kim +10
Conventional perovskite-type ferroelectrics are based on octahedral units of oxygen, and often comprise toxic Pb to achieve robust ferroelectricity. Here, we report the ferroelectr…