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

Abstract

In paper [1] (Avotina et al. Phys. Rev. B,74, 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 [1] 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.

arXiv comment8 pages, 5 figures

References in corpus (3)

• Method to determine defect positions below a metal surface by STM
• Signature of Fermi surface anisotropy in point contact conductance in the presence of defects
• Magneto-quantum oscillations of the conductance of a tunnel point-contact in the presence of a single defect

Cited by in corpus (7)

• Interplay between Kondo effect and Ruderman-Kittel-Kasuya-Yosida interaction
• Theory of oscillations in the STM conductance resulting from subsurface defects (Review Article)
• Quantum interference effects in a system of two tunnel point-contacts in the presence of single scatterer: simulation of a double-tip STM experiment
• Magneto-orientation and quantum size effect in SP-STM conductance in the presence of a subsurface magnetic cluster
• Fermi surface contours obtained from STM images around surface point defects
• Influence of a single defect on the conductance of a tunnel point contact between a normal metal and a superconductor
• Conductance of a STM contact on the surface of a thin film