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Exotic Kondo crossover in a wide temperature region in the topological Kondo insulator SmB6 revealed by high-resolution ARPES
N. Xu, C. E. Matt, E. Pomjakushina +12
Temperature dependence of the electronic structure of SmB6 is studied by high-resolution ARPES down to 1 K. We demonstrate that there is no essential difference for the dispersions…
Correlated decay of triplet excitations in the Shastry-Sutherland compound SrCu(BO)
M. E. Zayed, Ch. Rüegg, Th. Strässle +8
The temperature dependence of the gapped triplet excitations (triplons) in the 2D Shastry-Sutherland quantum magnet SrCu(BO) is studied by means of inelastic neutron sc…
Direct observation of the spin texture in strongly correlated SmB6 as evidence of the topological Kondo insulator
N. Xu, P. K. Biswas, J. H. Dil +18
The concept of a topological Kondo insulator (TKI) has been brought forward as a new class of topological insulators in which non-trivial surface states reside in the bulk Kondo ba…
Surface vs bulk electronic structures of a moderately correlated topological insulator YbB6 revealed by ARPES
N. Xu, C. E. Matt, E. Pomjakushina +14
Systematic angle-resolved photoemission spectroscopy (ARPES) experiments have been carried out to investigate the bulk and (100) surface electronic structures of a topological mixe…
Magnetic nano-fluctuations in a frustrated magnet
Krunoslav Prsa, Mark Laver, Martin Mansson +18
Frustrated systems exhibit remarkable properties due to the high degeneracy of their ground states. Stabilised by competing interactions, a rich diversity of typically nanometre-si…