Abstract
Large scale Monte Carlo simulations are performed in order to clarify thermodynamic properties of interlayer Josephson vortices induced by a magnetic field parallel to the ab plane of high-T c superconductors. It is revealed that there is a tricritical point in the B−T phase diagram, so that for magnetic field above (below) this point the normal to superconductivity transition is continuous (discontinuous). The critical point is described by the product of the magnetic field and the c-axis anisotropy parameter. The origin of the change in the nature of phase transition is the intrinsic pinning effect of the layer structure.
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Hu, X. Pinning Effects in Vortex States of High-T c Superconductors: Monte Carlo Simulations. Journal of Low Temperature Physics 131, 979–986 (2003). https://doi.org/10.1023/A:1023424320665
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DOI: https://doi.org/10.1023/A:1023424320665