High-field quantum spin liquid transitions and angle-field phase diagram of the Kitaev magnet α-RuCl3

doi:10.1103/PhysRevB.107.115124

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	High-field quantum spin liquid transitions and angle-field phase diagram of the Kitaev magnet α-RuCl3
	Li, Han 1; Li, Wei 1,2; Su, Gang 1
刊名	PHYSICAL REVIEW B
	2023
卷号	107 期号:11 页码:115124
关键词	DELAFOSSITES INSULATOR
ISSN号	2469-9950
DOI	10.1103/PhysRevB.107.115124
英文摘要	The pursuit of quantum spin liquid (QSL) in the Kitaev honeycomb magnets has drawn intensive attention recently. In particular, alpha-RuCl3 has been widely recognized as a promising candidate for the Kitaev QSL. Although the compound exhibits an antiferromagnetic order under zero field, it is believed to be endowed with fractionalized excitations and can be driven to the QSL phase by magnetic fields. Here, based on a realistic K-J-F-F' model for alpha-RuCl3, we exploit the exponential tensor renormalization group approach to explore the phase diagram of the compound under magnetic fields. We calculate the thermodynamic quantities, including the specific heat, Gruneisen parameter, magnetic torque, magnetotropic susceptibility, and so on, under a magnetic field with a tilting angle 0 to the c*-axis perpendicular to the honeycomb plane. We find an extended QSL in the angle-field phase diagram determined with thermodynamic responses. The gapless nature of such field-induced QSL is identified from the specific heat and entropy data computed down to very low temperatures. The present study provides guidance for future high-field experiments for the QSL in alpha-RuCl3 and other candidate Kitaev magnets.
学科主题	Materials Science ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27995]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Univ Chinese Acad Sci, Kavli Inst Theoret Sci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Han,Li, Wei,Su, Gang. High-field quantum spin liquid transitions and angle-field phase diagram of the Kitaev magnet α-RuCl3[J]. PHYSICAL REVIEW B,2023,107(11):115124.
APA	Li, Han,Li, Wei,&Su, Gang.(2023).High-field quantum spin liquid transitions and angle-field phase diagram of the Kitaev magnet α-RuCl3.PHYSICAL REVIEW B,107(11),115124.
MLA	Li, Han,et al."High-field quantum spin liquid transitions and angle-field phase diagram of the Kitaev magnet α-RuCl3".PHYSICAL REVIEW B 107.11(2023):115124.