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Hidden Weyl Points in Centrosymmetric Paramagnetic Metals
Dominik Gresch, QuanSheng Wu, Georg W. Winkler +1
The transition metal dipnictides TaAs2 , TaSb2 , NbAs2 and NbSb2 have recently sparked interest for exhibiting giant magnetoresistance. While the exact nature of magnetoresistance…
On the impact of strain on the electronic properties of InAs/GaSb quantum well systems
Lars Tiemann, Susanne Mueller, Quansheng Wu +6
Electron-hole hybridization in InAs/GaSb double quantum well structures leads to the formation of a mini band gap. We experimentally and theoretically studied the impact of strain…
Triple Point Topological Metals
Ziming Zhu, Georg W. Winkler, QuanSheng Wu +2
Topologically protected fermionic quasiparticles appear in metals, where band degeneracies occur at the Fermi level, dictated by the band structure topology. While in some metals t…
Experimental Signatures of the Inverted Phase in InAs/GaSb Coupled Quantum Wells
Matija Karalic, Susanne Mueller, Christopher Mittag +8
Transport measurements are performed on InAs/GaSb double quantum wells at zero and finite magnetic fields applied parallel and perpendicular to the quantum wells. We investigate a…
Quantum Interference Effects in Topological Nanowires In a Longitudinal Magnetic Field
Vincent E. Sacksteder, Quansheng Wu
We study the magnetoconductance of topological insulator nanowires in a longitudinal magnetic field, including Aharonov-Bohm, Altshuler-Aronov-Spivak, perfectly conducting channel,…
Fermi arcs and their topological character in the candidate type-II Weyl semimetal MoTe2
A. Tamai, Q. S. Wu, I. Cucchi +9
We report a combined experimental and theoretical study of the candidate type-II Weyl semimetal MoTe2. Using laser-based angle-resolved photoemission we resolve multiple distinct F…