Stability of the vortex lattice in D-wave superconductors
arXiv:cond-mat/9810335 · doi:10.1209/epl/i1998-00468-4
Abstract
Use is made of Onsager's hydrodynamic equation to derive the vibration spectrum of the vortex lattice in d-wave superconductor. In particular the rhombic lattice (i.e. the $45^\circ$ tilted square lattice) is found to be stable for $B>H_{cr}(t)$. Here $H_{cr}(t)$ denotes the critical field at which the vortex lattice transition takes place.
7 pages, Revtex