Pinning of Single Crystals of Niobium Irradiated at Helium Temperature

Pinning of Single Crystals of Niobium Irradiated at Helium Temperature

The influence of neutron irradiation at 4.2 °K on the pinning of Abrikosov flux lines in single crystals of niobium was studied. It is shown that the irradiation with fast neutrons of 3.5 × 1012 cm−2 increases the mean value of the pinning force. Exposition of the specimen during 80 h at T = 100 °K...

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Veröffentlicht in:Phys. Status Solidi (b), v. 56, no. 1, pp. 79-84 v. 56, no. 1, pp. 79-84, 1973-03, Vol.56 (1), p.79-84
Hauptverfasser: Andronikashvili, E. L., Ashimov, S. M., Tsakadze, J. S.
Format: Artikel
Sprache:eng
Schlagworte:
ABRIKOSOV THEORY
FAST NEUTRONS
MAGNETIC FLUX
MONOCRYSTALS
N50240 -Metals, Ceramics, & Other Materials-Metals & Alloys-Radiation Effects
NIOBIUM- PHYSICAL RADIATION EFFECTS
POINT DEFECTS
ULTRALOW TEMPERATURE
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Zusammenfassung:The influence of neutron irradiation at 4.2 °K on the pinning of Abrikosov flux lines in single crystals of niobium was studied. It is shown that the irradiation with fast neutrons of 3.5 × 1012 cm−2 increases the mean value of the pinning force. Exposition of the specimen during 80 h at T = 100 °K and the recooling do not eliminate the irradiation effect. It is assumed that the observed increase in the pinning force is caused by additional pinning of dislocations available in the specimen (pinning‐centres) by point defects, formed during irradiation. [Russian Text Ignored].
ISSN:0370-1972
1521-3951
DOI:10.1002/pssb.2220560105