Tunneling and neutron scattering experiments on A15 V3Si
Creators
- 1. Institut fuer Nukleare Festkoerperphysik, Kernforschungszentrum Karlsruhe, Postfach 3640, D-7500 Karlsruhe, Federal Republic of Germany
Description
Tunnel junctions in A15 V3Si with artificial tunnel barriers of aluminum oxide have been prepared by magnetron sputtering. The best samples showed T/sub c/ = 14.0 K and Δ0 = 2.0 meV. Detailed studies of the second derivatives revealed fine structures at the energies 11.0, 17.5, 21.5, 27.7, 32.5, and 39.5 meV. The location of these energy fine structures is in good agreement with the main features of the phonon density of states of V3Si, which has been measured by inelastic neutron scattering experiments. The reduced density of states was strongly deformed, obviously due to the existence of a proximity layer between the V3Si and the tunnel barrier. Using the proximity analysis for the bets junctions, we found a satisfactory agreement of the fitted curves with the measured data
Additional details
Publishing Information
- Journal Title
- Phys. Rev., B: Condens. Matter
- Journal Volume
- 31
- Journal Issue
- 9
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 6066-6069
- ISSN
- 0163-1829
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 16077284
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM OXIDES; BETA-W LATTICES; LATTICE VIBRATIONS; NEUTRON DIFFRACTION; OSCILLATION MODES; PHONONS; SUPERCONDUCTING JUNCTIONS; SUPERCONDUCTIVITY; TUNNEL EFFECT; VANADIUM SILICIDES
- Descriptors DEC
- ALUMINIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; QUASI PARTICLES; SCATTERING; SILICIDES; SILICON COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS