抄録
In YBa2Cu3O7 (YBCO) + BaSnO3 (BSO)/PrBa2Cu3O7 (PrBCO) multilayer films, behavior of vortices pinned by BSO nanorods was evaluated to discuss influence of ab-plane non-superconducting layers on c-axis correlated vortex pinning. Critical current density (Jc) and activation energy for thermally activated flux flow in magnetic field parallel to the c-axis were reduced by the PrBCO layers and a c-axis peak in an angular dependence of Jc became small, as YBCO + BSO layer thickness decreased or PrBCO layer thickness increased. Irreversibility temperature and trapping angle were not changed by the PrBCO layers for thick YBCO + BSO layers and thin PrBCO layers. This indicates that the ab-plane non-superconducting layers accelerated the vortex motion along the ab-plane without changing the vortex structure. Thin YBCO + BSO layers or thick PrBCO layers resulted in much more drastic degradation of the c-axis correlated vortex pinning due to two dimensional vortex nature or partially prevailed vortex structure, which decreased not only Jc and activation energy, but also irreversibility temperature and trapping angle. Thus, the c-axis correlation of vortex pinning is varied by addition of the ab-plane non-superconducting layers.
| 元の言語 | English |
|---|---|
| 記事番号 | 073903 |
| ジャーナル | Journal of Applied Physics |
| 巻 | 114 |
| 発行部数 | 7 |
| DOI | |
| 出版物ステータス | Published - 2013 8 21 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
これを引用
Variation of c-axis correlation on vortex pinning by ab-plane non-superconducting layers in YBa2Cu3O7 films. / Horide, Tomoya; Murayama, Takuto; Takata, Kaoru; Matsumoto, Kaname; Mele, Paolo; Yoshida, Yutaka; Ichino, Yusuke; Awaji, Satoshi.
：: Journal of Applied Physics, 巻 114, 番号 7, 073903, 21.08.2013.研究成果: Article
}
TY - JOUR
T1 - Variation of c-axis correlation on vortex pinning by ab-plane non-superconducting layers in YBa2Cu3O7 films
AU - Horide, Tomoya
AU - Murayama, Takuto
AU - Takata, Kaoru
AU - Matsumoto, Kaname
AU - Mele, Paolo
AU - Yoshida, Yutaka
AU - Ichino, Yusuke
AU - Awaji, Satoshi
PY - 2013/8/21
Y1 - 2013/8/21
N2 - In YBa2Cu3O7 (YBCO) + BaSnO3 (BSO)/PrBa2Cu3O7 (PrBCO) multilayer films, behavior of vortices pinned by BSO nanorods was evaluated to discuss influence of ab-plane non-superconducting layers on c-axis correlated vortex pinning. Critical current density (Jc) and activation energy for thermally activated flux flow in magnetic field parallel to the c-axis were reduced by the PrBCO layers and a c-axis peak in an angular dependence of Jc became small, as YBCO + BSO layer thickness decreased or PrBCO layer thickness increased. Irreversibility temperature and trapping angle were not changed by the PrBCO layers for thick YBCO + BSO layers and thin PrBCO layers. This indicates that the ab-plane non-superconducting layers accelerated the vortex motion along the ab-plane without changing the vortex structure. Thin YBCO + BSO layers or thick PrBCO layers resulted in much more drastic degradation of the c-axis correlated vortex pinning due to two dimensional vortex nature or partially prevailed vortex structure, which decreased not only Jc and activation energy, but also irreversibility temperature and trapping angle. Thus, the c-axis correlation of vortex pinning is varied by addition of the ab-plane non-superconducting layers.
AB - In YBa2Cu3O7 (YBCO) + BaSnO3 (BSO)/PrBa2Cu3O7 (PrBCO) multilayer films, behavior of vortices pinned by BSO nanorods was evaluated to discuss influence of ab-plane non-superconducting layers on c-axis correlated vortex pinning. Critical current density (Jc) and activation energy for thermally activated flux flow in magnetic field parallel to the c-axis were reduced by the PrBCO layers and a c-axis peak in an angular dependence of Jc became small, as YBCO + BSO layer thickness decreased or PrBCO layer thickness increased. Irreversibility temperature and trapping angle were not changed by the PrBCO layers for thick YBCO + BSO layers and thin PrBCO layers. This indicates that the ab-plane non-superconducting layers accelerated the vortex motion along the ab-plane without changing the vortex structure. Thin YBCO + BSO layers or thick PrBCO layers resulted in much more drastic degradation of the c-axis correlated vortex pinning due to two dimensional vortex nature or partially prevailed vortex structure, which decreased not only Jc and activation energy, but also irreversibility temperature and trapping angle. Thus, the c-axis correlation of vortex pinning is varied by addition of the ab-plane non-superconducting layers.
UR - http://www.scopus.com/inward/record.url?scp=84883272474&partnerID=8YFLogxK
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U2 - 10.1063/1.4818518
DO - 10.1063/1.4818518
M3 - Article
AN - SCOPUS:84883272474
VL - 114
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 7
M1 - 073903
ER -