Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session S19: Computational Materials Design and Discovery -- Data-Driven Electronic Structure
11:15 AM–2:03 PM,
Thursday, March 7, 2019
BCEC
Room: 156C
Sponsoring
Units:
DMP DCOMP
Chair: Alexander Urban
Abstract: S19.00010 : Material design of indium-based compounds: possible candidates for charge, valence and bond disproportionation and superconductivity
1:51 PM–2:03 PM
Presenter:
Chang-Jong Kang
(Rutgers University, New Brunswick)
Authors:
Chang-Jong Kang
(Rutgers University, New Brunswick)
Gabriel Kotliar
(Rutgers University, New Brunswick)
AInX$_{3}$ (A = alkali metals, X = F or Cl). We find nine new indium-based materials in their ground state and are thermodynamically stable but are not reported in Inorganic Crystal Structure Database (ICSD). We also discuss several metastable structures. This new series of materials display multiple valences, charge and bond disproportionation, and dimerization. The most common valence of In is 3+. We also find two rare alternatives, one has In$^{2+}$ with In-In dimerization and the other shows valence disproportionation to In$^{1+}$ and In$^{3+}$ with bond disproportionation. We study the possibility of superconductivity in these new In compounds and find that CsInF$_{3}$ has a transition temperature of about 24 K with sufficient hole doping and pressure.
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