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

• Published in: Физика низких температур
• Date: 2008
• Main Authors: Avotina, Ye.S., Kolesnichenko, Yu.A., Roobol, S.B., van Ruitenbeek, J.M.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2008
• Subjects: Электpонные свойства металлов и сплавов
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/116863
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Conductance of a tunnel point contact of noble metals in
 the presence of a single defect / Ye.S. Avotina, Yu.A. Kolesnichenko, S.B. Roobol, J.M. van Ruitenbeek // Физика низких температур. — 2008. — Т. 34, № 3. — С. 268–272. — Бібліогр.: 18 назв. — англ.

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.