Anisotropic properties of the layered superconductor Cu0.07TiSe2
E. Morosan, Lu Li, N. P. Ong, R. J. Cava
DOI 10.1103/PhysRevB.75.104505 · Physical Review B
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Abstract
The anisotropic superconducting properties of single crystals of Cu0.07TiSe2 were studied by measurements of magnetization and electrical resistivity. Tc is around 3.9K, and the measured upper critical field (Hc2) values are ∼1.25 and 0.8T, for applied field parallel and perpendicular to the TiSe2 planes, respectively. The anisotropy ratio γanis=Hc2ab∕Hc2c is close to 1.6 and nearly temperature independent. The lower critical field (Hc1) values are much smaller (∼32Oe for H‖ab and 17Oe for H‖c); demagnetizing corrections for field perpendicular to the thin plate crystals are required for the determination of Hc1c. The anisotropy of the critical fields is described well by the anisotropic Ginzburg-Landau (GL) theory, and the characteristic GL parameters are determined and discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Cu0.07TiSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.9 | Pressure not reported | midpoint |
| Cu0.07TiSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.9 | Pressure not reported | midpoint |
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