Phase oscillation modes of a Josephson vortex lattice in layered high-Tc superconductors

Tomio Koyama

doi:10.1016/j.physc.2004.01.062

Phase oscillation modes of a Josephson vortex lattice in layered high-T_c superconductors

Tomio Koyama

Institute for Materials Research (IMR)

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

Abstract

Small phase oscillation modes of a triangular Josephson vortex lattice in a stack of intrinsic Josephson junctions are clarified. The eigen-frequency of the lowest excitation mode, ω₁, is less than the zero-field plasma frequency, ω_pl, and is a decreasing function of the magnetic field H. The eigen-frequencies ω_n with n≥2 is located above ω_pl and increases with increasing H. This result is consistent with the field dependence of the Josephson plasma resonance observed in Bi-2212 and YBCO.

Original language	English
Pages (from-to)	407-410
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.2004.01.062
Publication status	Published - 2004 Oct 1

Keywords

Intrinsic Josephson effect
Josephson plasma resonance
Josephson vortex lattice

ASJC Scopus subject areas

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

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AB - Small phase oscillation modes of a triangular Josephson vortex lattice in a stack of intrinsic Josephson junctions are clarified. The eigen-frequency of the lowest excitation mode, ω1, is less than the zero-field plasma frequency, ωpl, and is a decreasing function of the magnetic field H. The eigen-frequencies ωn with n≥2 is located above ωpl and increases with increasing H. This result is consistent with the field dependence of the Josephson plasma resonance observed in Bi-2212 and YBCO.

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