D. V. Evtushinsky

TL;DR: Evidence of a magnetic Weyl state is reported and the surface Fermi arcs in YbMnBi2 are observed, providing a fundamental link between the two areas of physics, and the practical way to design novel materials with exotic properties.

TL;DR: In this article, angle-resolved photoemission spectroscopy was used to study both the momentum dependence of the superconducting gap of FeSe and the orbital content of the bands, and experimental observation of a direct scaling between a particular orbital character and gap magnitude, paired with theoretical calculations, provides strong evidence in favor of spin fluctuation mediated superconductivity in FeSe.

TL;DR: In this article, angle-resolved photoemission spectroscopy (ARPES) was used to investigate the inherent electronic structure of the NdFeAsO0.6F0.4 compound.

TL;DR: In this article, angle-resolved photoemission spectroscopy was used to study both the momentum dependence of the superconducting gap of FeSe and the orbital content of the bands, and experimental observation of a direct scaling between a particular orbital character and gap magnitude, paired with theoretical calculations, provides strong evidence in favor of spin fluctuation mediated superconductivity in FeSe.

TL;DR: In this article, the authors demonstrate that the superconducting state in LiFeAs is also a nematic one and observe spontaneous breaking of the rotational symmetry in the gap amplitude on all Fermi surfaces, as well as unidirectional distortion of the fermi pockets.