292 citations · 1k across the 30 of their papers we have counts for
6 papers · 1 filter
The Locality Cost of Fully Flat Hopf Insulators
Feng Liu, Qifeng Liang, Wenlong Gao
Hopf topology permits a strictly finite-range Hamiltonian with one exactly flat topological band. We prove, however, that extending flatness to the complete two-band spectrum neces…
Shubnikov-de Haas Oscillations and Nontrivial Topological State in a New Weyl Semimetal Candidate SmAlSi
Longmeng Xu, Haoyu Niu, Yuming Bai +7
We perform the quantum magnetotransport measurements and first-principles calculations on high quality single crystals of SmAlSi, a new topological Weyl semimetal candidate. At low…
Robust magnetoresistance in TaAs2 under pressure up to about 37 GPa
Hongyuan Wang, Cuiying Pei, Hao Su +13
The extremely large magnetoresistance (XMR) in nonmagnetic semimetals has inspired growing interest owing to both intriguing physics and potential applications. We report results o…
Exotic Node Line in ternary MgSrSi-type crystals
Jinling Lian, Lixian Yu, Qi-Feng Liang +3
Node line (NL) band-touchings protected by mirror symmetry (named as -NL), the product of inversion and time reversal symmetry (-NL), or nonsymmorphic symmet…
Transition between strong and weak topological insulator in ZrTe and HfTe
Zongjian Fan, Qi-Feng Liang, Y. B. Chen +2
ZrTe and HfTe have attracted increasingly attention recently since the theoretical prediction of being topological insulators (TIs). However, subsequent works show many con…
Tunable Semimetallic State in Compressive-strained SrIrO3 Films Revealed by Transport Behaviors
Lunyong Zhang, Qifeng Liang, Ye Xiong +11
Orthorhombic SrIrO3 is a typical spin-orbit-coupling correlated metal that shows diversified physical properties under the external stimuli. Here nonlinear Hall effect and weakly t…