Interlayer Transport in the Highly Anisotropic Misfit-Layer Superconductor (LaSe)1.14(NbSe2)
P. Szabó, P. Samuely, J. Kačmarčík, A. G. M. Jansen, A. Briggs, A. Lafond, A. Meerschaut
DOI 10.1103/PhysRevLett.86.5990 · Physical Review Letters
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Abstract
The interlayer transport in a two-dimensional superconductor can reveal a peak in the temperature as well as the magnetic field dependence of the resistivity near the superconducting transition. The experiment was performed on the highly anisotropic misfit-layer superconductor (LaSe)1.14(NbSe2) with Tc of 1.2 K. The effect is interpreted within the tunneling mechanism of the charge transport across the Josephson-coupled layers via two parallel channels—the quasiparticles and the Cooper pairs. Similar behavior can be found in the high- Tc cuprates but there it is inevitably interfering with the anomalous normal state. The upper critical magnetic field can be obtained from the interlayer tunneling conductance.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (LaSe)1.14(NbSe2) Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.2 | Pressure not reported | unknown |
| LaSe1.14NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.23 | Pressure not reported | midpoint |
| Bi2Sr2CaCu2O8 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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