Identification of magnetic interactions and high-field quantum spin liquid in α-RuCl₃.

ABSTRACT: The frustrated magnet α-RuCl₃ constitutes a fascinating quantum material platform that harbors the intriguing Kitaev physics. However, a consensus on its intricate spin interactions and field-induced quantum phases has not been reached yet. Here we exploit multiple state-of-the-art many-body methods and determine the microscopic spin model that quantitatively explains major observations in α-RuCl₃, including the zigzag order, double-peak specific heat, magnetic anisotropy, and the characteristic M-star dynamical spin structure, etc. According to our model simulations, the in-plane field drives the system into the polarized phase at about 7 T and a thermal fractionalization occurs at finite temperature, reconciling observations in different experiments. Under out-of-pl

SUBMITTER: Li H 

PROVIDER: S-EPMC8242101 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature