ITP OpenIR  > SCI期刊论文
Li, Han; Zhang, Hao-Kai; Wang, Jiucai1; Wu, Han-Qing; Gao, Yuan; Qu, Dai-Wei; Liu, Zheng-Xin; Gong, Shou-Shu; Li, Wei4,5
Identification of magnetic interactions and high-field quantum spin liquid in alpha-RuCl3
Source PublicationNATURE COMMUNICATIONS
Language英语
KeywordSCATTERING
AbstractThe frustrated magnet alpha -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 alpha -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-plane fields, the zigzag order is suppressed at 35 T, above which, and below a polarization field of 100 T level, there emerges a field-induced quantum spin liquid. The fractional entropy and algebraic low-temperature specific heat unveil the nature of a gapless spin liquid, which can be explored in high-field measurements on alpha -RuCl3. The nature of spin interactions and the field-induced quantum spin liquid phase in the Kitaev material alpha -RuCl3 have been debated. Here, using a combination of many-body techniques, the authors derive an effective spin model that explains the majority of experimental findings and predicts a new quantum spin liquid phase in strong out-of-plane magnetic field.
2021
ISSN2041-1723
Volume12Issue:1Pages:4007
Cooperation Status国内
Subject AreaScience & Technology - Other Topics
MOST Discipline CatalogueMultidisciplinary Sciences
DOI10.1038/s41467-021-24257-8
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27359
CollectionSCI期刊论文
Affiliation1.Beihang Univ, Sch Phys, Beijing, Peoples R China
2.Tsinghua Univ, Inst Adv Study, Beijing, Peoples R China
3.Renmin Univ China, Dept Phys, Beijing, Peoples R China
4.Sun Yat Sen Univ, Ctr Neutron Sci & Technol, Sch Phys, Guangzhou, Peoples R China
5.Beihang Univ, Int Res Inst Multidisciplinary Sci, Beijing, Peoples R China
6.Chinese Acad Sci, Inst Theoret Phys, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Li, Han,Zhang, Hao-Kai,Wang, Jiucai,et al. Identification of magnetic interactions and high-field quantum spin liquid in alpha-RuCl3[J]. NATURE COMMUNICATIONS,2021,12(1):4007.
APA Li, Han.,Zhang, Hao-Kai.,Wang, Jiucai.,Wu, Han-Qing.,Gao, Yuan.,...&Li, Wei.(2021).Identification of magnetic interactions and high-field quantum spin liquid in alpha-RuCl3.NATURE COMMUNICATIONS,12(1),4007.
MLA Li, Han,et al."Identification of magnetic interactions and high-field quantum spin liquid in alpha-RuCl3".NATURE COMMUNICATIONS 12.1(2021):4007.
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