Josephson plasma and Josephson vortex lattice in high Tc superconductors with an applied magnetic field parallel to the layers

Hideki Matsumoto, Tomio Koyama

研究成果: Article査読

4 被引用数 (Scopus)

抄録

By use of the multi-Josephson junction model, we investigate Josephson plasma modes in the high Tc superconductor with an applied magnetic field parallel to the layers. The capacitive and inductive effects are considered as inter-layer couplings. By numerical simulations, we obtain stable lattice structure of Josephson vortices, and calculate the spectrum of the Josephson plasma modes. It is shown that the triangular lattice of vortices is stable at high magnetic field, but it is distorted for H≤H cr∼Φ0/(2πλD), where Φ0 is the unit flux, λ the penetration depth along the ab-plane and D the depth of the insulating layer. We identify two observable Josephson plasma modes; the higher mode increases with H, while the lower mode takes the maximum at H = Hcr and decreases with increasing H.

本文言語English
ページ(範囲)444-448
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
412-414
SPEC. ISS.
DOI
出版ステータスPublished - 2004 10月 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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