Local photo-excitation of shift current in noncentrosymmetric systems
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DOI: 10.1088/1367-2630/aa6171
Abstract: Photocurrent in solids is an important phenomenon with many applications including the solar cells. In conventional photoconductors, the electrons and holes created by light irradiation are separated by the external electric field, resulting in a… read more here.
Keywords: local photo; photo excitation; current noncentrosymmetric; noncentrosymmetric systems ... See more keywords
Classification of accidental band crossings and emergent semimetals in two-dimensional noncentrosymmetric systems
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DOI: 10.1103/physrevb.96.125127
Abstract: We classify all possible gap-closing procedures which can be achieved in two-dimensional time-reversal invariant noncentrosymmetric systems. For exhaustive classification, we examine the space group symmetries of all 49 layer groups lacking inversion taking into account… read more here.
Keywords: classification; dimensional noncentrosymmetric; two dimensional; band ... See more keywords