In-plane anisotropy of Josephson-vortex flow resistance in Bi 2Sr2CaCu2O 8+y

S. Ooi; T. Mochiku; S. Yu; E. S. Sadki; N. Ishikawa; K. Hirata

doi:10.1016/j.physc.2004.03.207

In-plane anisotropy of Josephson-vortex flow resistance in Bi ₂Sr₂CaCu₂O _8+y

S. Ooi, T. Mochiku, S. Yu, E. S. Sadki, N. Ishikawa, K. Hirata

Research output: Contribution to journal › Conference article › peer-review

Abstract

Recently, we have found periodic oscillations of Josephson-vortex flow resistance as a function of in-plane field in Bi₂Sr ₂CaCu₂O_8+y single crystals [Phys. Rev. Lett. 89 (2002) 247002]. This phenomenon was interpreted to arise from a matching effect between the lattice spacing of Josephson vortices and the width of samples. To clarify further for this explanation, and study the effects of the sample boundaries on the Josephson-vortex flow, we have measured the in-plane anisotropy of Josephson-vortex flow resistance. When the field orientation is parallel to boundaries, the flow resistance is strongly suppressed, and the periodic oscillations are clearly observed. This suggests that the effects of sample boundaries are important for the Josephson-vortex flow, especially at the regime of low currents.

Original language	English
Pages (from-to)	545-546
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	408-410
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physc.2004.03.207
Publication status	Published - Aug 2004
Externally published	Yes
Event	Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duration: May 25 2003 → May 30 2003

Keywords

BiSr CaCuO
Josephson-vortex flow
Periodic oscillations

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2004.03.207

Cite this

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title = "In-plane anisotropy of Josephson-vortex flow resistance in Bi 2Sr2CaCu2O 8+y",

abstract = "Recently, we have found periodic oscillations of Josephson-vortex flow resistance as a function of in-plane field in Bi2Sr 2CaCu2O8+y single crystals [Phys. Rev. Lett. 89 (2002) 247002]. This phenomenon was interpreted to arise from a matching effect between the lattice spacing of Josephson vortices and the width of samples. To clarify further for this explanation, and study the effects of the sample boundaries on the Josephson-vortex flow, we have measured the in-plane anisotropy of Josephson-vortex flow resistance. When the field orientation is parallel to boundaries, the flow resistance is strongly suppressed, and the periodic oscillations are clearly observed. This suggests that the effects of sample boundaries are important for the Josephson-vortex flow, especially at the regime of low currents.",

keywords = "BiSr CaCuO, Josephson-vortex flow, Periodic oscillations",

author = "S. Ooi and T. Mochiku and S. Yu and Sadki, {E. S.} and N. Ishikawa and K. Hirata",

year = "2004",

month = aug,

doi = "10.1016/j.physc.2004.03.207",

language = "English",

volume = "408-410",

pages = "545--546",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "1-4",

note = "Proceedings of the International Conference on Materials ; Conference date: 25-05-2003 Through 30-05-2003",

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TY - JOUR

T1 - In-plane anisotropy of Josephson-vortex flow resistance in Bi 2Sr2CaCu2O 8+y

AU - Ooi, S.

AU - Mochiku, T.

AU - Yu, S.

AU - Sadki, E. S.

AU - Ishikawa, N.

AU - Hirata, K.

PY - 2004/8

Y1 - 2004/8

N2 - Recently, we have found periodic oscillations of Josephson-vortex flow resistance as a function of in-plane field in Bi2Sr 2CaCu2O8+y single crystals [Phys. Rev. Lett. 89 (2002) 247002]. This phenomenon was interpreted to arise from a matching effect between the lattice spacing of Josephson vortices and the width of samples. To clarify further for this explanation, and study the effects of the sample boundaries on the Josephson-vortex flow, we have measured the in-plane anisotropy of Josephson-vortex flow resistance. When the field orientation is parallel to boundaries, the flow resistance is strongly suppressed, and the periodic oscillations are clearly observed. This suggests that the effects of sample boundaries are important for the Josephson-vortex flow, especially at the regime of low currents.

AB - Recently, we have found periodic oscillations of Josephson-vortex flow resistance as a function of in-plane field in Bi2Sr 2CaCu2O8+y single crystals [Phys. Rev. Lett. 89 (2002) 247002]. This phenomenon was interpreted to arise from a matching effect between the lattice spacing of Josephson vortices and the width of samples. To clarify further for this explanation, and study the effects of the sample boundaries on the Josephson-vortex flow, we have measured the in-plane anisotropy of Josephson-vortex flow resistance. When the field orientation is parallel to boundaries, the flow resistance is strongly suppressed, and the periodic oscillations are clearly observed. This suggests that the effects of sample boundaries are important for the Josephson-vortex flow, especially at the regime of low currents.

KW - BiSr CaCuO

KW - Josephson-vortex flow

KW - Periodic oscillations

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