New surface resistance measurement technique of high-temperature superconductors using a probe coupling microstrip line resonator

2001 ◽  
Vol 11 (1) ◽  
pp. 3078-3081 ◽  
Author(s):  
D. Okai ◽  
M. Kusunoki ◽  
M. Mukaida ◽  
S. Ohshima
Keyword(s):  
High Temperature ◽  
Measurement Technique ◽  
Surface Resistance ◽  
Microstrip Line ◽  
High Temperature Superconductors ◽  
Resistance Measurement

Correlation of thermally stimulated luminescence with radio frequency surface resistance of high‐temperature superconductors

1989 ◽  
Vol 55 (10) ◽  
pp. 1038-1040 ◽  
Author(s):  
D. W. Cooke ◽  
B. Bennett ◽  
E. R. Gray ◽  
R. J. Houlton ◽  
W. L. Hults ◽  
...  
Keyword(s):  
High Temperature ◽  
Radio Frequency ◽  
Surface Resistance ◽  
High Temperature Superconductors ◽  
Thermally Stimulated Luminescence

Surface resistance of thin Perovskite films — high-temperature superconductors and giant magnetoresistance manganites

1996 ◽  
Vol 288 (1-2) ◽  
pp. 256-261 ◽  
Author(s):  
S.E. Lofland ◽  
M. Dominguez ◽  
S.D. Tyagi ◽  
S.M. Bhagat ◽  
M.C. Robson ◽  
...  
Keyword(s):  
High Temperature ◽  
Giant Magnetoresistance ◽  
Surface Resistance ◽  
High Temperature Superconductors

Luminescence from Defects and Impurity Centers in Y2O3

1989 ◽  
Vol 169 ◽  
Author(s):  
M. S. Jahan ◽  
D. W. Cooke ◽  
B. L Bennett ◽  
W. L Hults ◽  
M. A. Maez ◽  
...  
Keyword(s):  
High Temperature ◽  
Surface Resistance ◽  
High Temperature Superconductors ◽  
Emission Spectra ◽  
Second Phase ◽  
X Rays ◽  
Deep Traps ◽  
Impurity Ions ◽  
Order Of Magnitude ◽  
Impurity Centers

AbstractHigh-purity (99.999%) Y2O3 powder is used as a starting material for fabricating high-temperature superconductors (HTS), and is frequently found as an unreacted second phase in the final product. We have found that as-received Y2O3 contains Tb3+ paramagnetic impurity ions as determined by TSL and emission-spectra measurements. Deep luminescence traps (presumably Tb4+ ions) are formed in Y2O3 when it is exposed to frays, x rays, or fluorescent lights. These deep traps can only be removed by annealing the material to near 1600°C. Given the short coherence length of HTS it is possible that order-of-magnitude variations in the Tb impurity concentration of starting materials may affect the ultimate value of surface resistance (Rs).

Sign in / Sign up

Export Citation Format

Share Document