Phys. Rev. B 72, 060504(R) (2005) [4 pages]Temperature and field dependence of the flux-line-lattice symmetry in V3Si
In V3Si, a first-order structural phase transition from hexagonal to square flux-line lattice occurs at approximately 1 T with H‖ to the a axis. In this paper, we demonstrate the reentrant structural transition in the flux-line lattice, which reverts to hexagonal symmetry as the magnetic field approached Hc2(T). This behavior is described very well by a nonlocal London theory with thermal fluctuations. The phase diagram of the flux lattice topology is mapped out for this geometry. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.72.060504
DOI:
10.1103/PhysRevB.72.060504
PACS:
74.70.−b, 74.25.−q, 61.12.Ex
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