A novel 2-dimensional artificial pinning center

M. Takamura, M. Mukaida, S. Horii, A. Ichinose, R. Kita, S. Kato, K. Matsumoto, Y. Yoshida, M. Namba, S. Awaji, K. Watanabe, R. Teranishi, K. Yamada, N. Mori, Y. Hisatsune

Research output: Contribution to journalArticlepeer-review


To increase critical current density (JC) in magnetic fields (B) parallel to the c-axis, 2-dimensional artificial pinning centers (APCs) are introduced into YBa2Cu3O7-δ (Y123) films. Multilayer films alternately stacked a-axis oriented Y123 and Pr123 (Y123/Pr123 multilayer films) have been grown on SrLaGaO4 substrates by pulsed laser deposition. Magnetic field angular dependences of the JC showed peaks not only in B // a-axis but also in B // c-axis of the Y123/Pr123 multilayer films. This result indicates that the Y123/Pr123 multilayer films have c-axis-correlated pinning centers. Consequently, it is suggested that the Pr123 layers act as 2-dimentional APCs.

Original languageEnglish
Article number012153
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2008 Feb 1


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