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Li doping kagome spin liquid compounds
Wei Jiang, Huaqing Huang, Jiawei Mei +1
Herbertsmithite and Zn-doped barlowite are two compounds for experimental realization of twodimensional gapped kagome spin liquid. Theoretically, it has been proposed that charge d…
Effect of Zn doping on the antiferromagnetism in kagome CuZn(OH)FBr
Zili Feng, Yuan Wei, Ran Liu +10
Barlowite Cu(OH)FBr shows three-dimensional (3D) long-range antiferromagnetism, which is fully suppressed in CuZn(OH)FBr with a kagome quantum spin liquid ground st…
Tunable Bi-frustrated Electron Spin and Charge States in a Cu-Hexaaminobenzene Framework
Wei Jiang, Zheng Liu, Jia-Wei Mei +2
A geometrically frustrated lattice may host frustrated electron spin or charge states that spawn exotic quantum phases. We show that a newly synthesized metal-organic framework of…
Topological superconducting phase in high-Tc superconductor MgB2 with Dirac-nodal-line fermions
Kyung-Hwan Jin, Huaqing Huang, Jia-Wei Mei +3
Topological superconductors are an intriguing and elusive quantum phase, characterized by topologically protected gapless surface/edge states residing in a bulk superconducting gap…
Evidence for the topological order in a kagome antiferromagnet
Yuan Wei, Zili Feng, Wiebke Lohstroh +19
A Z2 quantum spin liquid hosts one of the simplest topological orders and exhibits many exotic properties due to long-range quantum entanglements. Its elementary excitations are an…
Electronic and spin dynamics in the insulating iron pnictide NaFeCuAs
Shunhong Zhang, Yanjun He, Jia-Wei Mei +2
NaFeCuAs represents a rare exception in the metallic iron pnictide family, in which a small insulating gap is opened. Based on first-principles study, we provide a…