79 citations · 160 across the 7 of their papers we have counts for
7 papers
Slow dynamics of disordered zigzag chain molecules in layered LiVS2 under electron irradiation
Naoyuki Katayama, Keita Kojima, Tomoki Yamaguchi +8
Electronic instabilities in transition metal compounds often spontaneously form orbital molecules, which consist of orbital-coupled metal ions at low temperature. Recent local stru…
Vanadium trimers randomly aligned along the c-axis direction in layered LiVO2
K. Kojima, N. Katayama, S. Tamura +2
Herein, we discuss the identification of vanadium trimers in layered LiVO2 and its sulfide analog of LiVS2 with two-dimensional triangular lattices. Our comprehensive structural st…
Large entropy change derived from the orbitally assisted three-centered two-electron σ bond formation in a metallic Li0.33VS2
N. Katayama, S. Tamura, T. Yamaguchi +8
We discuss herein the emergence of a large entropy change in metallic Li0.33VS2 derived from the orbitally assisted loose σ bond formation. Comprehensive structural studies based o…
Electron-Phonon Coupling Mode in Excitonic Insulator
Akitoshi Nakano, Takumi Hasegawa, Shinya Tamura +3
Ta2NiSe5 is considered a promising excitonic insulator (EI) candidate with slight phonon contributions, since it exhibits a tiny orthorhombic-to-monoclinic structural distortion at…
Various arsenic network structures in 112-type Ca1-xLaxFe1-yPdyAs2 revealed by synchrotron x-ray diffraction experiments
Shinya Tamura, Naoyuki Katayama, Yuto Yamada +3
Two novel 112-type palladium doped iron arsenides were synthesized and identified using comprehensive studies involving synchrotron x-ray diffraction and x-ray absorption near edge…
Gravity in --Dimensional Quantum Gravity
Jun Nishimura, Shinya Tamura, Asato Tsuchiya
We study gravity in --dimensional quantum gravity. Taking care of the oversubtraction problem in the conformal mode dynamics, we perform a full order calculation of st…
Scaling Dimensions of Manifestly Generally Covariant Operators in Two-Dimensional Quantum Gravity
Jun Nishimura, Shinya Tamura, Asato Tsuchiya
Using (2+)-dimensional quantum gravity recently formulated by Kawai, Kitazawa and Ninomiya, we calculate the scaling dimensions of manifestly generally covariant operators in tw…