1999/06/29 by H. Matsumoto, Hideki Matsumoto, S. Sakamoto +7 · 1 citation
Materials Science · Physics and Astronomy · #Iron-based superconductors research #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.60.3666
18 pages, Latex, 8 figures. To be appear in Phys.Rev.B Vol.60(1999)
arxiv created 1999/06/29 · openalex publication_date 1999/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
I\ensuremath-V characteristics of the high-Tc superconductor Bi2Sr2Ca1C2O8 shows a strong hysteresis, producing many branches. The origin of hysteresis jumps is studied by use of the model of multilayered Josephson junctions proposed by one of the authors (T.K.). The charging effect at superconducting layers produces a coupling between the next-nearest-neighbor phase differences, which determines the structure of hysteresis branches. It will be shown that a solution of phase motions is understood as a combination of rotating and oscillating phase differences, and that, at points of hysteresis jumps, there occurs a change in the number of rotating phase differences. Effects of dissipation are analyzed. The dissipation in insulating layers works to damp the phase motion itself, while the dissipation in superconducting layers works to damp relative motions of phase differences. Their effects to hysteresis jumps are discussed.