Vortex States in Intrinsic Josephson Junctions of B$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta }$ in High Parallel Magnetic Fields

ORAL

Abstract

The $I_{c}$-axis resistivity measurements were performed in the vicinity of the \textit{ab}-plane in order to investigate the interaction between Josephson vortices (JVs) and pancake vortices (PVs) in B$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta }$ mesoscopic single crystals. It was found that the vortex lock-in transition becomes considerably broad in high magnetic fields, while the angular dependence of resistance exhibits the sharp lock-in features in low magnetic field region. The magnetic field dependence of the resistance exhibits the non-monotonic behavior probing the different vortex phases in tilted magnetic fields. Sharp dips and steps in the $c$-axis resistance were observed accompanied by penetration of quantized pancake vortices by tilting external fields from the \textit{ab}-plane.

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Authors

  • Jovan Mirkovic

    • Faculty of Sciences, University of Montenegro, G. Washington Str., 81000 Podgorica, Montenegro

  • Saito Takashi

    • Institute of Materials Science, University of Tsukuba, 305-8573 Tsukuba, Japan

  • Yuimaru Kubo

    • National Institute of Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan

  • Itsuhiro Kakeya

    • Electronic Science and Eng. Faculty, University of Kyoto, 615-8510 Kyoto, Japan

  • Ahmed Oral

    • Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla, 34956 Istanbul, Turkey

  • Takashi Yamamoto

    • Institute of Materials Science, University of Tsukuba, 305-8573 Tsukuba, Japan

  • Kazuo Kadowaki

    • Institute of Materials Science, University of Tsukuba, 305-8573 Tsukuba, Japan