Beats of Josephson-vortex flow oscillations in Bi2Sr 2CaCu2O8+y

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

doi:10.1016/j.physc.2003.12.052

Beats of Josephson-vortex flow oscillations in Bi₂Sr ₂CaCu₂O_8+y

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

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Recently, it has been found that the Josephson-vortex flow resistance oscillates as a function of magnetic field when Josephson vortices form a triangular lattice [S. Ooi, T. Mochiku, K. Hirata, Phys. Rev. Lett. 89 (2002) 247002]. To study the effects of the sample boundaries on the Josephson-vortex flow, we have measured the in-plane anisotropy of Josephson-vortex flow resistance. In addition to a strong suppression of the flow resistance for fields parallel to the boundaries, beats in the oscillations appear, as the in-plane angle is slightly tilted from the exact parallel position. The beats are explained from the superposition of oscillations with different periods, corresponding to different effective widths.

Original language	English
Pages (from-to)	454-457
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2003.12.052
Publication status	Published - Oct 2004
Externally published	Yes

Keywords

Beats of oscillations
BiSr CaCuO
Josephson vortex
Vortex-flow resistance

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.2003.12.052

Cite this

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title = "Beats of Josephson-vortex flow oscillations in Bi2Sr 2CaCu2O8+y",

abstract = "Recently, it has been found that the Josephson-vortex flow resistance oscillates as a function of magnetic field when Josephson vortices form a triangular lattice [S. Ooi, T. Mochiku, K. Hirata, Phys. Rev. Lett. 89 (2002) 247002]. To study the effects of the sample boundaries on the Josephson-vortex flow, we have measured the in-plane anisotropy of Josephson-vortex flow resistance. In addition to a strong suppression of the flow resistance for fields parallel to the boundaries, beats in the oscillations appear, as the in-plane angle is slightly tilted from the exact parallel position. The beats are explained from the superposition of oscillations with different periods, corresponding to different effective widths.",

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T1 - Beats of Josephson-vortex flow oscillations in Bi2Sr 2CaCu2O8+y

AU - Ooi, S.

AU - Mochiku, T.

AU - Yu, S.

AU - Sadki, E. S.

AU - Ishikawa, H.

AU - Hirata, K.

PY - 2004/10

Y1 - 2004/10

N2 - Recently, it has been found that the Josephson-vortex flow resistance oscillates as a function of magnetic field when Josephson vortices form a triangular lattice [S. Ooi, T. Mochiku, K. Hirata, Phys. Rev. Lett. 89 (2002) 247002]. To study the effects of the sample boundaries on the Josephson-vortex flow, we have measured the in-plane anisotropy of Josephson-vortex flow resistance. In addition to a strong suppression of the flow resistance for fields parallel to the boundaries, beats in the oscillations appear, as the in-plane angle is slightly tilted from the exact parallel position. The beats are explained from the superposition of oscillations with different periods, corresponding to different effective widths.

AB - Recently, it has been found that the Josephson-vortex flow resistance oscillates as a function of magnetic field when Josephson vortices form a triangular lattice [S. Ooi, T. Mochiku, K. Hirata, Phys. Rev. Lett. 89 (2002) 247002]. To study the effects of the sample boundaries on the Josephson-vortex flow, we have measured the in-plane anisotropy of Josephson-vortex flow resistance. In addition to a strong suppression of the flow resistance for fields parallel to the boundaries, beats in the oscillations appear, as the in-plane angle is slightly tilted from the exact parallel position. The beats are explained from the superposition of oscillations with different periods, corresponding to different effective widths.

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KW - Josephson vortex

KW - Vortex-flow resistance

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