MAGNETIC PHASES OF JOSEPHSON VORTEX IN STRONGLY ANISOTROPIC High-Tc SUPERCONDUCTORS
2007
When a magnetic field is applied parallel to the superconducting layers in high-Tc superconductors (HTSCs), vortices become Josphson vortices (JVs). To study the magnetic phase diagram of JVs in strongly anisotropic HTSCs, we propose that the JV flow-resistance measurement is a powerful probe to observe periodic oscillations in the JV flow-resistance against the magnetic field. We could determine the magnetic phase diagram of JVs in Bi-2212, in which there exist a three-dimensionally-ordered state and a two-dimensionally quasi-ordered one.
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