Mode Crystallography Analysis through the Structural Phase Transition and Magnetic Critical Behavior of the Lacunar Spinel GaMo₄Se₈.

ABSTRACT: In the lacunar spinels, with the formula AB₄X₈, transition-metal ions form tightly bound B₄ clusters resulting in exotic physical properties such as the stabilization of Néel-type skyrmion lattices, which hold great promise for energy-efficient switching devices. These properties are governed by the symmetry of these compounds with distortion of the parent noncentrosymmetric F4̅3m space group to the polar R3m, with recent observation of a coexisting Imm2 low-temperature phase. In this study, through powder neutron diffraction, we further confirm that a metastable Imm2 coexists with the R3m phase in GaMo₄Se₈ and we present its structure. By applying the mode crystallography approac

SUBMITTER: Routledge K 

PROVIDER: S-EPMC8382239 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature