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Antiferromagnetic topological metal near the metal-insulator transition in MnS
Vsevolod Ivanov, Xiangang Wan, Sergey Y. Savrasov
Antiferromagnetic (AFM) semiconductor MnS possesses both high-spin and low-spin magnetic phases that can be reversibly switched by applying pressure. With increasing pressure,…
Two phase transitions driven by surface electron-doping in WTe
Antonio Rossi, Giacomo Resta, Seng Huat Lee +6
WTe is a multifunctional quantum material exhibiting numerous emergent phases in which tuning of the carrier density plays an important role. Here we demonstrate two non-monoto…
A Monopole Mining Method for High Throughput Screening Weyl Semimetals
Vsevolod Ivanov, Sergey Y. Savrasov
Although topological invariants have been introduced to classify the appearance of protected electronic states at surfaces of insulators, there are no corresponding indexes for Wey…
Turning Copper Metal into Weyl Semimetal
Yongping Du, Er-jun Kan, Hu Xu +2
A search for new topological quantum systems is challenging due to the requirement of non{trivial band connectivity that leads to protected surface states of electrons. A progress…
Emergence of Topological Nodal Lines and Type II Weyl Nodes in Strong Spin--Orbit Coupling System InNbX2(X=S,Se)
Yongping Du, Xiangyan Bo, Di Wang +4
Using first--principles density functional calculations, we systematically investigate electronic structures and topological properties of InNbX2 (X=S, Se). In the absence of spin-…
CaTe: a new topological node-line and Dirac semimetal
Yongping Du, Feng Tang, Di Wang +5
Topological semimetals recently stimulate intense research activities. Combining first-principles calculations and effective model analysis, we predict that CaTe is topological nod…