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133 papers · 1 filter
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…
Quantum Spin Hall Effect in Two-dimensional Crystals of Transition Metal Dichalcogenides
M. A. Cazalilla, H. Ochoa, F. Guinea
We propose to engineer time-reversal-invariant topological insulators in two-dimensional (2D) crystals of transition metal dichalcogenides (TMDCs). We note that, at low doping, sem…
Fe-vacancy order and superconductivity in PbO-type tetragonal β-Fe1-xSe
Ta-Kun Chen, Chung-Chieh Chang, Hsian-Hong Chang +12
Several superconducting transition temperatures in the range of 30-40 K were reported in the recently discovered intercalated FeSe sytem (A1-xFe2-ySe2, A = K, Rb, Cs, Tl). Although…
Exploring the X-ray and gamma-ray properties of the redback millisecond pulsar PSR J1723-2837
C. Y. Hui, P. H. T. Tam, J. Takata +5
We have investigated the X-ray and -ray properties of the redback millisecond pulsar PSR J1723-2837 with XMM-Newton, Chandra and Fermi. We have discovered the X-ray orbital modu…
Local PT symmetry violates the no-signaling principle
Yi-Chan Lee, Min-Hsiu Hsieh, Steven T. Flammia +1
Bender et al. have developed PT-symmetric quantum theory as an extension of quantum theory to non-Hermitian Hamiltonians. We show that when this model has a local PT symmetry actin…
High energy emission of GRB 130821A: constraining the density profile of the circum-burst medium as well as the initial Lorentz factor of the outflow
Yun-Feng Liang, Bei Zhou, Hao-Ning He +3
GRB 130821A was detected by Fermi-GBM/LAT, Konus-Wind, SPI-ACS/INTEGRAL, RHESSI and Mars Odyssey-HEND. Although the data of GRB 130821A are very limited, we show in this work that…