Tunneling density of states of vanadium

Journal Article · Mon Feb 01 04:00:00 UTC 1982 · Sov. Phys. - Solid State (Engl. Transl.); (United States)

OSTI ID:5077926

Vedeneev, S I; Pogrebnyakov, A V

The first and second derivatives of the current-voltage characteristics of a V--oxide--Au tunneling junction are investigated. It is shown that the observable singularities in the experimental tunneling density of states N (eV) are a reflection of the electron-phonon interaction. The results obtained are compared with the tunneling data on Nb and Ta, and it is found that the values for V, Nb, and Ta of the product M..omega../sup 2/ (M is the mass of the atom and ..omega.. denotes the energy coordinates of the singularities in the N (eV) curve) corresponding to the phonon factor M<..omega../sup 2/>, which determines the electron--phonon interaction constant lambda, coincide to within a few percent.

• Research Organization: P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 5077926
• Journal Information: Sov. Phys. - Solid State (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Solid State (Engl. Transl.); (United States) Vol. 24:2; ISSN SPSSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
&amp; Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CORRELATIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON-PHONON COUPLING
ELEMENTS
FILMS
GOLD
JOSEPHSON JUNCTIONS
JUNCTIONS
METALS
NIOBIUM
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
TANTALUM COMPOUNDS
TANTALUM TUNGSTATES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTATES
TUNNEL EFFECT
VAN HOVE THEORY
VANADIUM