DocumentCode
1124623
Title
Vortex Behaviors Near Irreversibility Fields of 
-Axis Oriented Y123 Films Inserted Pr123 Layers
Author
Takamura, Makoto ; Mukaida, Masashi ; Horii, Shigeru ; Ichinose, Ataru ; Kita, Ryusuke ; Namba, Masafumi ; Awaji, Satoshi ; Watanabe, Kazuo ; Matsumoto, Kaname ; Yoshida, Yutaka
Author_Institution
Kyushu Univ., Fukuoka, Japan
Volume
19
Issue
3
fYear
2009
fDate
6/1/2009 12:00:00 AM
Firstpage
3499
Lastpage
3502
Abstract
The irreversibility temperatures were measured for a-axis oriented and c-axis in-plane aligned Y123/Pr123 multilayer films in various magnetic fields. Pr123 layers act as two-dimensional (planer) c-axis correlated artificial pinning centers (APCs) in the multilayer films. In the irreversibility field-temperature (B irr - T) curves, the crossover was observed near matching field B phi for the multilayer films, when the magnetic fields were applied parallel to the c -axis of the film (B//c). It is suggested the vortex state in Y123 films with two-dimensional APCs is Bose glass below the crossover field. The B irr - T curves under B // a shifted toward lower temperature and magnetic field regions.
Keywords
barium compounds; flux pinning; high-temperature superconductors; magnetic field effects; mixed state; multilayers; praseodymium compounds; superconducting thin films; yttrium compounds; Bose glass; YBa2Cu3O7-delta-PrBa2Cu3O7-delta; artificial pinning centers; irreversibility field -temperature; irreversibility temperatures; multilayer films; vortex behaviors; vortex state; High-temperature superconductors; multilayer films; superconducting films; vortex pinning;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2009.2019552
Filename
5153274
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