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Non-Kondo-like Electronic Structure in the Correlated Rare-Earth Hexaboride YbB
Madhab Neupane, Su-Yang Xu, Nasser Alidoust +11
We present angle-resolved photoemission studies on the rare-earth hexaboride YbB, which has recently been predicted to be a topological Kondo insulator. Our data do not agree w…
Surface electronic structure of the topological Kondo insulator candidate correlated electron system SmB6
Madhab Neupane, Nasser Alidoust, SuYang Xu +15
The Kondo insulator SmB6 has long been known to exhibit low temperature transport anomalies whose origin is of great interest. Here we uniquely access the surface electronic struct…
An experimental algorithm for identifying the topological nature of Kondo and mixed valence insulators
M. Neupane, N. Alidoust, Suyang Xu +9
Possible topological nature of Kondo and mixed valence insulators has been a recent topic of interest in condensed matter physics. Attention has focused on SmB6, which has long bee…
Surface electronic structure of a topological Kondo insulator candidate SmB6: insights from high-resolution ARPES
M. Neupane, N. Alidoust, S. -Y. Xu +13
The Kondo insulator SmB6 has long been known to exhibit low temperature (T < 10K) transport anomaly and has recently attracted attention as a new topological insulator candidate. B…
Anomalous spin-momentum locked two-dimensional states in the vicinity of a topological phase transition
Su-Yang Xu, M. Neupane, Chang Liu +12
We perform spin-resolved and spin-integrated angle-resolved photoemission spectroscopy measurements on a series of compositions in the BiTl(S1-xSex)2 system, focusing on x-values i…
Renormalization of f-levels away from the Fermi energy in electron excitation spectroscopies: Density functional results of NdCeCuO
T. Jarlborg, B. Barbiellini, H. Lin +2
Relaxation energies for photoemission, when an occupied electronic state is excited, and for inverse photoemission, when an empty state is filled, are calculated within the density…