ID | 58055 |
FullText URL | |
Author |
Ghosh, Pratyay
Department of Physics, Indian Institute of Technology Madras
Iqbal, Yasir
Department of Physics, Indian Institute of Technology Madras
Müller, Tobias
Institute for Theoretical Physics and Astrophysics, Julius-Maximilians-Universität Würzburg
Ponnaganti, Ravi T.
Department of Physics, Indian Institute of Technology Madras
Thomale, Ronny
Institute for Theoretical Physics and Astrophysics, Julius-Maximilians-Universität Würzburg
Narayanan, Rajesh
Department of Physics, Indian Institute of Technology Madras
Reuther, Johannes
Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin
Gingras, Michel J. P.
Department of Physics and Astronomy, University of Waterloo
Jeschke, Harald O.
Research Institute for Interdisciplinary Science, Okayama University
|
Abstract | We address the long-standing problem of the microscopic origin of the richly diverse phenomena in the chromium breathing pyrochlore material family. Combining electronic structure and renormalization group techniques we resolve the magnetic interactions and analyze their reciprocal-space susceptibility. We show that the physics of these materials is principally governed by long-range Heisenberg Hamiltonian interactions, a hitherto unappreciated fact. Our calculations uncover that in these isostructural compounds, the choice of chalcogen triggers a proximity of the materials to classical spin liquids featuring degenerate manifolds of wave-vectors of different dimensions: A Coulomb phase with three-dimensional degeneracy for LiInCr4O8 and LiGaCr4O8, a spiral spin liquid with two-dimensional degeneracy for CuInCr4Se8 and one-dimensional line degeneracies characteristic of the face-centered cubic antiferromagnet for LiInCr4S8, LiGaCr4S8, and CuInCr4S8. The surprisingly complex array of prototypical pyrochlore behaviors we discovered in chromium spinels may inspire studies of transition paths between different semi-classical spin liquids by doping or pressure.
|
Published Date | 2019-12-18
|
Publication Title |
npj Quantum Materials
|
Volume | volume4
|
Publisher | Nature Publishing Group
|
Start Page | 63
|
ISSN | 2397-4648
|
Content Type |
Journal Article
|
language |
English
|
OAI-PMH Set |
岡山大学
|
Copyright Holders | © The Author(s) 2019
|
File Version | publisher
|
DOI | |
Web of Science KeyUT | |
Related Url | isVersionOf https://doi.org/10.1038/s41535-019-0202-z
|
License | http://creativecommons.org/licenses/by/4.0/
|