ISSN:
1432-0630
Keywords:
Niobium
;
Residual resistivity
;
Transition to superconductivity
;
Superconducting surface layers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract Measurements of the residual resistivity of Nb are usually carried out in longitudinal magnetic fields 〉H c3≈4.7 kOe. After annealing of Nb wires in helium or vacuum of 5·10−5 Torr a shift of the transition to normal conductivity towards higher fields (up to 9.3 kOe) was observed. This increase of the critical field is most likely caused by changes in the surface of the samples due to the annealing treatments.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00884500
