@article{oai:kyutech.repo.nii.ac.jp:00005887,
 author = {Horide, Tomoya and 堀出, 朋哉 and Matsukida,  Naoki and Ishimaru, Manabu and 石丸, 学 and Kita,  Ryusuke and Awaji,  Satoshi and Matsumoto, Kaname and 松本, 要},
 issue = {5},
 journal = {Applied Physics Letters},
 month = {Jan},
 note = {The pin size effect and mixed pinning of nanorods and matrix defects are discussed for YBa2Cu3O7-δ films containing nanorods. BaSnO3 nanorods with a diameter of 11 nm and BaHfO3 nanorods with a diameter of 7 nm were prepared, and critical current density (Jc) and resistivity were measured in the films. When the coherence length was larger than the nanorod size at high temperatures near the critical temperature, the trapping angle and activation energy of the vortex flow depended on the nanorod diameter. At a moderate temperature of 65-77K, the pin size effect on Jc disappeared since the coherence length became smaller than the nanorod size. At a low temperature of 20K, the contribution from matrix pinning became comparable to that of nanorods in a high magnetic field due to the small coherence length. Thus, the temperature-dependent coherence length caused the pin potential situation to vary significantly, namely, the pin size effect and mixed pinning, which strongly affected vortex pinning in YBa2Cu3O7-d containing nanorods.},
 pages = {052601-1--052601-5},
 title = {Pin potential effect on vortex pinning in YBa2Cu3O7-δ films containing nanorods: Pin size effect and mixed pinning},
 volume = {110},
 year = {2017},
 yomi = {ホリデ, トモヤ and イシマル, マナブ and マツモト, カナメ}
}