Destruction of global coherence in long superconducting nanocylinders
V. H. Dao, L. F. Chibotaru
DOI 10.1103/PhysRevB.79.134524 · Physical Review B
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Abstract
Recent experiments on long hollow nanocylinders have reported an anomalous broadening and a multistep character of the resistive transition between normal and superconducting states with increasing magnetic field. Here we show that a first-order phase separation is not the reason for such behavior since it can arise only for a wall thickness that is much larger than in the investigated samples (∼30 nm). On the contrary, it is found that the destruction of global coherence in the transition neighborhood should be triggered by intrinsic long-range inhomogeneities of the cylinder.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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