Investigation of the superconducting transition of ultra-high-purity niobium
Creators
- 1. Amt fuer Standardisierung, Messwesen und Warenpruefung, Berlin (German Democratic Republic)
- 2. Akademie der Wissenschaften der DDR, Dresden. Zentralinstitut fuer Festkoerperphysik und Werkstofforschung
Description
The superconducting transition of ultra-high purity niobium is investigated to estimate precisely the superconducting transition temperature (ST temperature) of the ideal material. The influence of various factors on the ST temperature of the samples investigated (T76/sup c/ = (9.2885 +- 0.002) K) is determined by comparing both, the transitions of samples with a quite different crystal quality (single crystals and polycrystalline wires) and of samples purified by different techniques (chemical and electrolytic refining). The results show that the modern techniques for the production of ultra-high-purity niobium yield samples, the ST temperatures of which are modified by only a few 0.1 mK compared with the ST temperature of the ideal material. (author)
Additional details
Publishing Information
- Journal Title
- Phys. Status Solidi A
- Journal Volume
- 100
- Journal Issue
- 2
- Series
- Phys. Status Solidi A.
- Journal Page Range
- 597-605
- ISSN
- 0031-8965
- CODEN
- PSSAB
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- German Democratic Republic
- INIS RN
- 18068380
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ELECTRIC CONDUCTIVITY; ELECTROREFINING; IMPURITIES; MAGNETIC FIELDS; MONOCRYSTALS; NIOBIUM; POLYCRYSTALS; PURIFICATION; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; WIRES
- Descriptors DEC
- CRYSTALS; ELECTRICAL PROPERTIES; ELECTROLYSIS; ELEMENTS; METALS; PHYSICAL PROPERTIES; REFINING; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS