頁籤選單縮合
題 名 | Vortex Lattice Structure and Josephon Plasma in High Tc Superconductors |
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作 者 | Tachiki,M.; ShafranjukS. E.; Hu,X.; | 書刊名 | Chinese Journal of Physics |
卷 期 | 36:2(Part2) 民87.04 |
頁 次 | 頁171-179 |
分類號 | 330 |
關鍵詞 | |
語 文 | 英文(English) |
英文摘要 | The nature of the Josephson vortices induced by an external magnetic field applied parallel to the CuO₂ layers in a high Tc superconductor end it of the Josephson plasma in the presence ofthe vortices are theoretically investigated. The ordered structure ofthe vortices is obtained by solving the nonlinear differential equation for the interlayer phase difference in a stacked system of Josephson junctions. The current distribution in the Josephson vortex is highly anisotropic and the vortices are arranged in straight chains, dissimilar to hexagonal lattices of Abrikosov and pancake vortices. The appearance of the chain structure in the system is also confirmedby a Monte Carlo simulation. The Josephson plasma is a coupled oscillation of the phase difference between the layers and of the electromagnetic field. The vortices modify the phase difference and thus strongly influence the Josephson plasma oscillation. Therefore, the dispersion spectra of the longitudinal and transverse plasma waves in the presence of the vortices are strongly dependent on the strength of an external magnetic field and temperature. |
本系統中英文摘要資訊取自各篇刊載內容。