Fermi surfaces of single layer dielectrics on transition metals

Details Fermi surfaces of single layer dielectrics on transition metals Fermi surfaces of single layer dielectrics on transition metals

2008-08-21

arxiv.org/abs/0808.2903v1

Surface Science 603 (2009) 1373-1377

Physics

Condensed Matter

Materials Science

14 pages, 6 figures, 1 table, 1 equation, Accepted for publication in the Special Surface Science issue in honor of Gerhard Er

Scientific paper

Single sheets of hexagonal boron nitride on transition metals provide a model system for single layer dielectrics. The progress in the understanding of h-BN layers on transition metals of the last 10 years are shortly reviewed. Particular emphasis lies on the boron nitride nanomesh on Rh(111), which is a corrugated single sheet of h-BN, where the corrugation imposes strong lateral electric fields. Fermi surface maps of h-BN/Rh(111) and Rh(111) are compared. A h-BN layer on Rh(111) introduces no new bands at the Fermi energy, which is expected for an insulator. The lateral electric fields of h-BN nanomesh violate the conservation law for parallel momentum in photoemission and smear out the momentum distribution curves on the Fermi surface.

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