First-order vortex unbinding transition in thin superconducting films
D. Yu. Irz, V. N. Ryzhov, E. E. Tareyeva
DOI 10.1103/PhysRevB.54.3051 · Physical Review B
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Abstract
The vortex unbinding transition in thin superconducting films is discussed within the cycle approximation, taking into account a vortex core shape. It is shown that for large core energies the universal Kosterlitz-Thouless-like behavior takes place in the vicinity of the characteristic transition temperature TKT, while for low core energies the vortex-antivortex pair unbinding occurs through a first-order transition. © 1996 The American Physical Society.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.66 | Pressure not reported | unknown |
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