Published April 1989 | Version v1
Journal article Metadata-only

Electric conductivity of high-purity tantalum within the temperature range of 4.2 to 300 K

Creators

  • 1. AN SSSR, Sverdlovsk (USSR). Inst. Fiziki Metallov

Description

Specific electric resistance of tantalum samples with ρ273.2K/ρ0 ratio from 90 up to 1510 was measured in 4.2-300 K range. For tantalum with ρ273.2K/ρ0 > 200 Tc temperature of superconducting transition is independent of sample purity and equals (4.50+-0.05) K. It is shown that electron scattering by phonons in tantalum, as in the case with vanadium makes contribution, proportional to T4. Temperature coefficient of resistance changes during sample cooling in the region of ∼ 155 K and at ∼ 175 K during heating

Additional details

Additional titles

Original title (Russian)
Электросопротивление тантала высокой чистоты в области 4.2-300 К

Publishing Information

Journal Title
Fizika Metallov i Metallovedeniya
Journal Volume
67
Journal Issue
4
Series
Fiz. Met. Metalloved.
Journal Page Range
734-740
ISSN
0015-3230
CODEN
FMMEA

INIS

Country of Publication
Russian Federation
Country of Input or Organization
USSR
INIS RN
21018201
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
IMPURITIES; MEDIUM TEMPERATURE; SUPERCONDUCTIVITY; TANTALUM; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; ULTRALOW TEMPERATURE
Descriptors DEC
ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; METALS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS