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arXiv · 0803.4448

Alkali-metal-induced Fermi level and two dimensional electrons at cleaved InAs(110) surfaces

Masaaki Minowa·Ryuichi Masutomi·Toshimitsu Mochizuki·Tohru Okamoto
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Abstract

Low-temperature Hall measurements have been performed on two-dimensional electron gases (2DEGs) induced by deposition of Cs or Na on in situ cleaved surfaces of p-type InAs. The surface donor level, at which the Fermi energy of the 2DEG is pinned, is calculated from the observed saturation surface electron density using a surface potential determined self-consistently. The results are compared to those of previous photoelectron spectroscopy measurements.

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Masaaki Minowa, Ryuichi Masutomi, Toshimitsu Mochizuki, Tohru Okamoto. 2008-06-03. Alkali-metal-induced Fermi level and two dimensional electrons at cleaved InAs(110) surfaces. https://doi.org/10.1103/physrevb.77.233301

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