Tunneling investigation of energy-gap anisotropy in superconducting bulk tin crystals

Journal Article · Wed Apr 01 04:00:00 EST 1981 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00118620· OSTI ID:6271430

Blackford, B L; Hill, K

Tunnel junctions have been fabricated on vacuum-grown Sn crystals and an investigation of energy-gap anisotropy in Sn has been carried out. The reduced gap parameter 2..delta../k/sub B/T/sub C/ was found to vary from 3.22 to 3.85 for the 34 tunnel junctions studied. A comparison of our results to those reported previously gave reasonably good agreement, although the range of gap values was considerably less in our case. We have tested our tunnel junctions with a view to the recent doubts raised about the validity of tunneling measurements of energy-gap anisotropy.

• Research Organization: Physics Department, Dalhousie University, Halifax, Nova Scotia, Canada
• OSTI ID: 6271430
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 43:1; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY GAP
FABRICATION
JUNCTIONS
METALS
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
TIN
TUNNEL EFFECT