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Unoccupied electronic structure and signatures of topological Fermi arcs in the Weyl semimetal candidate MoWTe
Ilya Belopolski, Su-Yang Xu, Yukiaki Ishida +30
Weyl semimetals have sparked intense research interest, but experimental work has been limited to the TaAs family of compounds. Recently, a number of theoretical works have predict…
Temperature induced Lifshitz transition in WTe2
Yun Wu, Na Hyun Jo, Masayuki Ochi +7
We use ultra-high resolution, tunable, VUV laser-based, angle-resolved photoemission spectroscopy (ARPES) and temperature and field dependent resistivity and thermoelectric power (…
Momentum dependence of the superconducting gap and in-gap states in MgB2 multi-band superconductor
Daixiang Mou, Rui Jiang, Valentin Taufour +3
We use tunable laser based Angle Resolved Photoemission Spectroscopy to study the electronic structure of the multi-band superconductor, MgB2. These results form the base line for…
Electronic Structure and Superconductivity of FeSe-Related Superconductors
Xu Liu, Lin Zhao, Shaolong He +7
The FeSe superconductor and its related systems have attracted much attention in the iron-based superconductors owing to their simple crystal structure and peculiar electronic and…
Discovery of a Weyl Fermion semimetal state in NbAs
Su-Yang Xu, Nasser Alidoust, Ilya Belopolski +21
We report the discovery of Weyl semimetal NbAs featuring topological Fermi arc surface states.
Strong interaction between electrons and collective excitations in multiband superconductor MgB2
Daixiang Mou, Rui Jiang, Valentin Taufour +7
We use a tunable laser ARPES to study the electronic properties of the prototypical multiband BCS superconductor MgB2. Our data reveal a strong renormalization of the dispersion (k…