Flux Lattice Symmetry in V3Si: Nonlocal Effects in a High- κ Superconductor
M. Yethiraj, D. K. Christen, D. McK. Paul, P. Miranovic, J. R. Thompson
DOI 10.1103/PhysRevLett.82.5112 · Physical Review Letters
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Abstract
In the high-κ cubic superconductor V3Si, phase transitions of the flux lattice structure occur as a function of applied field and temperature. With the field parallel to the fourfold [001] axis, the flux lattice transforms from triangular to square symmetry at approximately 1 T. With the field parallel to the twofold [110] axis, the lattice, which is a nearly perfect hexagonal array at the lowest fields, distorts as the field is increased; the rate of increase in this distortion changes abruptly at 1.3 T. As Tc is approached, the system tends towards a more isotropic hexagonal array of the flux lines. These transitions are largely but not completely in agreement with a recent theory of the effects on the flux line arrangements of nonlocal electrodynamics in the London limit.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| V3Si Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 16.3 | Pressure not reported | midpoint |
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