Tunnelling spectroscopy of AlAs and InSb interfaces in InAs/AlSb heterostructures
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ICHIZLI, V., VOGT, Alexander, SIGURDARDOTTIR, Anna, TIGINYANU, Ion, HARTNAGEL, Hans Ludwig. Tunnelling spectroscopy of AlAs and InSb interfaces in InAs/AlSb heterostructures. In: Semiconductor Science and Technology, 1999, vol. 14, pp. 143-147. ISSN 0268-1242. DOI: https://doi.org/10.1088/0268-1242/14/2/007
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Semiconductor Science and Technology
Volumul 14 / 1999 / ISSN 0268-1242

Tunnelling spectroscopy of AlAs and InSb interfaces in InAs/AlSb heterostructures

DOI:https://doi.org/10.1088/0268-1242/14/2/007

Pag. 143-147

Ichizli V.12, Vogt Alexander1, Sigurdardottir Anna1, Tiginyanu Ion2, Hartnagel Hans Ludwig1
 
1 Darmstadt University of Technology,
2 Institute of Applied Physics, Academy of Sciences of Moldova
 
 
Disponibil în IBN: 31 august 2023


Rezumat

MBE grown InAs/AlSb heterostructures with AlAs- and InSb-type interfaces were investigated by tunnelling spectroscopy using a scanning tunnelling microscope (STM). STM surface topography revealed a different electronic surface morphology of the thin InAs/AlSb heterostructure in the case of AlAs and InSb interfaces. Scanning tunnelling spectroscopy (STS) gives an understanding of the origin of local morphology fluctuations. STS suggests the occurrence of classical and quantum effects influencing the energy-band-structure formation in the case of these thin heterostructures.

Cuvinte-cheie
Band structure, Molecular beam epitaxy, morphology, Scanning tunneling microscopy, Semiconducting aluminum compounds, Semiconducting indium compounds, Semiconductor growth, Surface topography