A Possible Quantum Spin Liquid Phase in the Kitaev–Hubbard Model

被引:0
作者
Shaojun Dong [1 ]
Hao Zhang [2 ,3 ]
Chao Wang [1 ]
Meng Zhang [2 ,3 ]
Yong-Jian Han [1 ,2 ,3 ]
Lixin He [1 ,2 ,3 ,4 ]
机构
[1] Institute of Artificial Intelligence, Hefei Comprehensive National Science Center
[2] CAS Key Laboratory of Quantum Information, University of Science and Technology of China
[3] Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China
[4] Hefei National Laboratory, University of Science and Technology of China
基金
中国国家自然科学基金;
关键词
D O I
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中图分类号
O413 [量子论];
学科分类号
070201 ;
摘要
The quantum spin liquid(QSL) state of Kitaev-like materials, such as iridium oxides A2IrO3 and α-RuCl3,has been explored in depth. The half-filled Kitaev–Hubbard model with bond-dependent hopping terms is used to describe the Kitaev-like materials, which is calculated using the state-of-the-art fermionic projected entangled pair states method. We find a QSL phase near the Mott insulator transition, which has a strong first-order transition to the semi-metal phase with the decrease of Hubbard U. We suggest that a promising approach to finding QSL states is by finding iridium oxides that are near the Mott insulator transition.
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页码:168 / 172
页数:5
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