Temperature and dc magnetic field dependence of the surface resistance in HTS films

2005 ◽  
Vol 426-431 ◽  
pp. 1606-1610 ◽  
Author(s):  
A. Saito ◽  
M. Shirakawa ◽  
K. Kitamura ◽  
Y. Noguchi ◽  
M. Mukaida ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Surface Resistance ◽  
Magnetic Field Dependence ◽  
Dc Magnetic Field ◽  
Hts Films

Résistance de surface d'alliages Pb–Bi en régime de supraconductivité superficielle

1977 ◽  
Vol 55 (1) ◽  
pp. 55-60 ◽  
Author(s):  
M. Lyon ◽  
G. Zepp
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Surface Resistance ◽  
Magnetic Field Dependence ◽  
Experimental Results ◽  
Microwave Surface Resistance ◽  
The Magnetic Field

The magnetic field dependence of the microwave surface resistance of superconducting alloys Pb–Bi has been studied. The experimental results and the theory are compared.

MAGNETIC FIELD DEPENDENCE OF THE MICROWAVE SURFACE RESISTANCE IN MgB2 SUPERCONDUCTORS

2002 ◽  
Vol 16 (11n12) ◽  
pp. 1571-1576 ◽  
Author(s):  
A. AGLIOLO GALLITTO ◽  
S. FRICANO ◽  
M. LI VIGNI ◽  
N. N. KOLESNIKOV ◽  
M. P. KULAKOV
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Surface Resistance ◽  
Magnetic Field Dependence ◽  
Direct Reaction ◽  
Microwave Surface Resistance ◽  
Two Samples ◽  
Microwave Losses ◽  
The Magnetic Field ◽  
Mgb2 Superconductors

We report experimental results on microwave surface resistance in MgB2 superconductors. The results have been obtained using the cavity perturbation method. Two samples have been investigated: one was made up of commercial Alfa-Aesar powder and the other one was obtained by direct reaction from elements. The temperature and dc magnetic field dependence of the surface resistance has been investigated down to 4.2 K and up to 10 kOe, respectively. Our results show that microwave losses are strongly affected by the magnetic field even by a relatively weak one. In particular, an unusually enhanced field dependence of the low-T residual surface resistance has been detected in both samples.

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