Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1998-07-02
Phys. Rev. B59, 13139 (1999)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
8 double-column pages, REVTeX, 9 eps figures embedded with epsf, published version
Scientific paper
10.1103/PhysRevB.59.13139
The results of experimental and theoretical studies of zero-bias anomaly (ZBA) in the Pb-oxide-n-InAs tunnel structures in magnetic field up to 6T are presented. A specific feature of the structures is a coexistence of the 2D and 3D states at the Fermi energy near the semiconductor surface. The dependence of the measured ZBA amplitude on the strength and orientation of the applied magnetic field is in agreement with the proposed theoretical model. According to this model, electrons tunnel into 2D states, and move diffusively in the 2D layer, whereas the main contribution to the screening comes from 3D electrons.
Germanenko A. V.
Minkov G. M.
Negachev S. A.
Rut O. E.
Sukhorukov Eugene V.
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