VORTEX-LINE PHASE DIAGRAM FOR ANISOTROPIC SUPERCONDUCTORS
نویسندگان
چکیده
منابع مشابه
Vortex-Line Phase Diagram for Anisotropic Superconductors
The zero temperature vortex phase diagram for uniaxial anisotropic superconductors placed in an external magnetic field tilted with respect to the axis of anisotropy is studied for parameters typical of BSCCO and YBCO. The exact Gibbs free energy in the London approximation, using a self-energy expression with an anisotropic core cutoff, is minimized numerically, assuming only that the equilibr...
متن کاملPhase diagram of vortex matter of type-II superconductors
We propose a model to construct the phase diagram for type-II superconductors through molecular-dynamics simulation. In this model, the Abrikosov vortices interact with long-range repulsion and short-range attraction. We are able to obtain the phase diagrams consisting of the vortex lattice, the intermediate-mixed phase (IMP), and the disordered vortex phase in the B-T , B-κ, and B-q planes, wh...
متن کاملVortex Lines or Vortex-Line Chains at the Lower Critical Field in Anisotropic Superconductors?
The vortex state at the lower critical field, Hc1, in clean anisotropic superconductors placed in an external field tilted with respect to the axis of anisotropy (c-axis) is considered assuming two possible arrangements: dilute vortex-lines or dilute vortex-line chains. By minimizing the Gibbs free energies in the London limit for each possibility we obtain the corresponding lower critical fiel...
متن کاملUniversal Phase Diagram for Vortex States of Layered Superconductors in Strong Magnetic Fields
We report on a Monte Carlo study of the lowest-Landau-level limit of the Lawrence-Doniach model for a layered superconductor. We have studied order parameter correlation functions for indications of the broken translational symmetry and the off-diagonal long range order present in the mean-fieldtheory vortex lattice. Our results are consistent with a single first order phase transition between ...
متن کاملNonequilibrium Dynamic Phase Diagram for Vortex Lattices
The new dynamic phase diagram for driven vortices with varying lattice softness we present here indicates that, at high driving currents, at least two distinct dynamic phases of flux flow appear depending on the vortex-vortex interaction strength. When the flux lattice is soft, the vortices flow in independently moving channels with smectic structure. For stiff flux lattices, adjacent channels ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Modern Physics B
سال: 2002
ISSN: 0217-9792,1793-6578
DOI: 10.1142/s0217979202010282