Surface and Image-Potential States on the MgB_2(0001) Surfaces

Abstract

We present a self-consistent pseudopotential calculation of surface and image-potential states on $Mg{B}_2(0001)$ for both $B$-terminated ($B-t$) and $Mg$-terminated ($Mg-t$) surfaces. We find a variety of very clear surface and subsurface states as well as resonance image-potential states n=1,2 on both surfaces. The surface layer DOS at $E_F$ is increased by 55% at $B-t$ and by 90% at the $Mg-t$ surface compared to DOS in the corresponding bulk layers.

3 pages, 6 figures

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Cited by in corpus (8)

• Electronic structure of MgB${}_2$ from angle-resolved photoemission spectroscopy
• Temperature dependence and anisotropy of the bulk upper critical field H_c2 of MgB_2
• Scanning Tunneling Spectroscopy in MgB 2
• Surface Contribution to the Superconducting Properties of MgB2 Single Crystals
• A first-principles study of MgB2 (0001) surfaces
• Surface states and their possible role in the superconductivity of MgB2
• Characterization of high-quality MgB2(0001) epitaxial films on Mg(0001)
• Tuning MgB_2(0001) surface states