Conductance of a tunnel point contact of noble metals in the presence of a single defect

Электpонные свойства металлов и сплавов

Автор(и)

  • Ye.S. Avotina B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
  • Yu.A. Kolesnichenko B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine
  • S.B. Roobol Kamerlingh Onnes Laboratorium, Universiteit Leiden, Postbus 9504, 2300 Leiden, The Netherlands
  • J.M. van Ruitenbeek Kamerlingh Onnes Laboratorium, Universiteit Leiden, Postbus 9504, 2300 Leiden, The Netherlands

DOI:

https://doi.org/10.1063/1.2889410

Ключові слова:

Fermi surface, noble metal contacts, tunnel point contact.

Анотація

In paper (Avotina et.al., Phys. Rev. B74, 085411 (2006)) the effect of Fermi surface anisotropy to the conductance of a tunnel point contact, in the vicinity of which a single point-like defect is situated, has been investigated theoretically. The oscillatory dependence of the conductance on the distance between the contact and the defect has been found for a general Fermi surface geometry. In this paper we apply the method developed in (Avotina et.al., Phys. Rev. B74, 085411 (2006)) to the calculation of the conductance of noble metal contacts. An original algorithm, which enables the computation of the conductance for any parametrically given Fermi surface, is proposed. On this basis a pattern of the conductance oscillations, which can be observed by the method of scanning tunneling microscopy, is obtained for different orientations of the surface for the noble metals.

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Опубліковано

2008-01-24

Як цитувати

(1)
Avotina, Y.; Kolesnichenko, Y.; Roobol, S.; Ruitenbeek, J. van. Conductance of a Tunnel Point Contact of Noble Metals in the Presence of a Single Defect: Электpонные свойства металлов и сплавов. Fiz. Nizk. Temp. 2008, 34, 268-272.

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