Low temperature STM on InAs (110) accumulation surfaces

L. Canali; J. W. G. Wildoer; O. Kerkhof; L. P. Kouwenhoven

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arXiv · cond-mat/9708098

Low temperature STM on InAs (110) accumulation surfaces

L. Canali·J. W. G. Wildoer·O. Kerkhof·L. P. Kouwenhoven

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Abstract

The properties of InAs (110) surfaces have been investigated by means of low-temperature scanning tunneling microscopy and spectroscopy. A technique for ex-situ sulphur passivation has been developed to form an accumulation layer on such a surface. Tunneling spectroscopy at 4.2 K shows the presence of 2D subbands in the accumulation layer. Measurements in high-magnetic field demonstrate Landau quantization of the energy spectrum, both in the 2D subbands and the 3D bulk conduction band.

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L. Canali, J. W. G. Wildoer, O. Kerkhof, L. P. Kouwenhoven. 1997-08-25. Low temperature STM on InAs (110) accumulation surfaces. https://arxiv.org/abs/cond-mat/9708098

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