Surface states and their possible role in the superconductivity of MgB2

Details Surface states and their possible role in the superconductivity of MgB2 Surface states and their possible role in the superconductivity of MgB2

2001-11-22

arxiv.org/abs/cond-mat/0111434v2

Physics

Condensed Matter

4pages, 6figures, corrected typos, references added

Scientific paper

10.1103/PhysRevB.66.140502

We report layer-Korringa-Kohn-Rostocker calculations for bulk and surface states as well as the corresponding angle resolved photoemission (ARPES) intensities of MgB2. Our theoretical results reproduce very well the recent ARPES data by Uchiyama et al., cond-mat/0111152. At least two surface states are assigned. Consequences of SFS on the anisotropy of the upper critical fields and other properties in the superconducting state of small grains in micropowder samples are briefly discussed.

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