University of Minnesota
School of Physics & Astronomy


The Phase Diagram of Vortex Matter in Layered Superconductors with Tilted Columnar Pinning Centers


by C. Dasgupta and O.T. Valls in Phys. Rev B 80, 094517 (2009).

We study the vortex matter phase diagram of a layered superconductor in the presence of columnar pinning defects, {\it tilted} with respect to the normal to the layers. We use numerical minimization of the free energy written as a functional of the time averaged vortex density of the Ramakrishnan-Yussouff form, supplemented by the appropriate pinning potential. We study the case where the pin density is smaller than the areal vortex density

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