Microwave surface resistance of cuprate superconductors

1997 ◽  
Vol 7 (2) ◽  
pp. 1257-1259 ◽  
Author(s):  
B.A. Tonkin ◽  
Y.G. Proykova
Keyword(s):  
Surface Resistance ◽  
Cuprate Superconductors ◽  
Microwave Surface Resistance

Microwave Surface Resistance of Bi2Sr2CaCu2OxThick Films on Large-Area Metallic Substrates

1997 ◽  
Vol 36 (Part 1, No. 6A) ◽  
pp. 3478-3484 ◽  
Author(s):  
Shigemi Inagaki ◽  
Kiyomitsu Asano ◽  
Eizi Ezura ◽  
Shuetsu Haseyama ◽  
Shigeru Isagawa ◽  
...  
Keyword(s):  
Surface Resistance ◽  
Microwave Surface Resistance ◽  
Large Area ◽  
Metallic Substrates

scholarly journals Microwave surface resistance of pristine and neutron-irradiated MgB2 samples in magnetic field

2008 ◽  
Vol 63 (2) ◽  
pp. 165-177 ◽  
Author(s):  
M. Bonura ◽  
A. Agliolo Gallitto ◽  
M. Li Vigni ◽  
C. Ferdeghini ◽  
C. Tarantini
Keyword(s):  
Magnetic Field ◽  
Surface Resistance ◽  
Microwave Surface Resistance

MICROWAVE SURFACE RESISTANCE OF YBa2Cu3O7-δ

1988 ◽  
pp. 927-930
Author(s):  
Mineo Kobayashi ◽  
Katsuya Okabe ◽  
Seiichi Tanuma ◽  
Izumi Sankawa ◽  
Makoto Sato ◽  
...  
Keyword(s):  
Surface Resistance ◽  
Microwave Surface Resistance

Homogeneity in the Microwave Surface Resistance of Large YBa2Cu3O7−δ Superconductor Films Coated with Au

2020 ◽  
Vol 16 (3) ◽  
pp. 216-223
Author(s):  
Woo Il Yang ◽  
Sungho Lee ◽  
Ho Sang Jung ◽  
Hye-Rim Kim ◽  
Sang Young Lee
Keyword(s):  
Surface Resistance ◽  
Microwave Surface Resistance ◽  
Superconductor Films

Microwave surface resistance of bulkYBa2Cu3O6+xmaterial

1988 ◽  
Vol 38 (10) ◽  
pp. 7023-7025 ◽  
Author(s):  
A. Fathy ◽  
D. Kalokitis ◽  
E. Belohoubek ◽  
H. G. K. Sundar ◽  
A. Safari
Keyword(s):  
Surface Resistance ◽  
Microwave Surface Resistance

Peak effect at microwave frequencies in swift heavy ion irradiated YBa2Cu3O7-δthin films - investigation of vortex dynamics

2001 ◽  
Vol 689 ◽  
Author(s):  
Tamalika Banerjee ◽  
A. R. Bhangale ◽  
P. Raychaudhuri ◽  
D. Kanjilal ◽  
R. Pinto
Keyword(s):  
Vortex Dynamics ◽  
Surface Resistance ◽  
Flux Line ◽  
Heavy Ion ◽  
Peak Effect ◽  
Microwave Surface Resistance ◽  
Line Lattice ◽  
Microwave Frequencies ◽  
Columnar Defects ◽  
Pronounced Peak

ABSTRACTThe vortex dynamics at microwave frequencies in YBa2Cu3O7-δ(YBCO) films has been studied. We observe a peak in the microwave surface resistance Rs vs. T (temperature) plots at 4.88 GHz in some films in magnetic fields (upto 0.8 T) whereas a few films do not show a pronounced peak in their surface resistance. This is associated with the ‘peak-effect’ phenomenon and reflects the order-disorder transformation of the flux-line lattice near the transition temperature. Introduction of artificial pinning centers like columnar defects as a result of irradiation with 200 MeV Ag ion leads to the suppression of the peak in films exhibiting the ‘peak-effect’. Interestingly, a peak is seen to develop in those films that initially did not show a peak in the surface resistance before irradiation. These results and the dynamics of the vortices at microwave frequencies for the unirradiated and irradiated films will be discussed.

THE EFFECT OF THE INTERACTION BETWEEN THE FILMS AND THE SUBSTRATES ON THE MICROWAVE PROPERTIES Of YBCO THIN FILMS

2007 ◽  
Vol 21 (18n19) ◽  
pp. 3224-3226
Author(s):  
LIBIN SHI ◽  
YUNFEI WANG ◽  
YUYANG KE ◽  
QUANWU WANG ◽  
ZHEN ZHANG ◽  
...  
Keyword(s):  
Experimental Data ◽  
Thin Films ◽  
Resonant Frequency ◽  
Temperature Dependence ◽  
Surface Resistance ◽  
Microwave Properties ◽  
Microwave Surface Resistance ◽  
Microstrip Resonator ◽  
Lower Temperature ◽  
Xrd Patterns

The microwave properties of YBa 2 Cu 3 O 7- x / LaAlO 3 (YBCO/LAO) and YBa 2 Cu 3 O 7- x / MgO (YBCO/MgO) thin films have been investigated by microstrip resonator technique. The penetration depth λ0(0 K ) and the microwave surface resistance Rs can be obtained by analyzing the experimental data of the temperature dependence of resonant frequency, unload quality factor of the microstrip resonator. The stress in the two thin films can be obtained from their XRD patterns. The result shows that the stronger stress in YBCO/LAO thing film makes it have larger microwave surface resistance at lower temperature.

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