BROWSE

Related Scientist

HAN, Jae-Ho's photo.

HAN, Jae-Ho
복잡계 이론물리 연구단
more info

ITEM VIEW & DOWNLOAD

Weak-coupling to strong-coupling quantum criticality crossover in a Kitaev quantum spin liquid alpha-RuCl3

Cited 0 time in webofscience Cited 0 time in scopus
195 Viewed 0 Downloaded
Title
Weak-coupling to strong-coupling quantum criticality crossover in a Kitaev quantum spin liquid alpha-RuCl3
Author(s)
Jae-Ho Han; Seung-Hwan Do; Kwang-Yong Choi; Sang-Youn Park; Kim, Jae-You; Ji, Sungdae; Kim, Ki-Seok; Park, Jae-Hoon
Publication Date
2023-06
Journal
NPJ QUANTUM MATERIALS, v.8, no.1
Publisher
NATURE PORTFOLIO
Abstract
We report a quantum criticality crossover representing two different universal scaling behaviors in a Kitaev quantum magnetic material alpha-RuCl3. alpha-RuCl3 presents both a symmetry-breaking antiferromagnetic order and a long-range entangled topological order of a quantum spin liquid, and thus could be a candidate system for a unique universality class involving deconfined fractionalized excitations of the local Z(2) fluxes and itinerant Majorana fermions. Theoretical analyses on the inelastic neutron scattering, ac-magnetic susceptibility, and specific heat results demonstrate that Wilson-Fisher-Yukawa-type 'conventional' weak-coupling quantum criticality in high-energy scales crosses over to heavy-fermion-type 'local' strong-coupling one in low-energy scales. Our findings provide deep insight on how quantum criticality evolves in fermion-boson coupled topological systems with different types of deconfined fermions.
URI
https://pr.ibs.re.kr/handle/8788114/13556
DOI
10.1038/s41535-023-00563-w
ISSN
2397-4648
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse