Electric and magnetic characterization of NbSe2 single crystals: anisotropic superconducting fluctuations above Tc
F. Soto, H. Berger, L. Cabo, C. Carballeira, J. Mosqueira, D. Pavuna, P. Toimil, F. Vidal
Abstract
Electric and magnetic characterization of NbSe2 single crystals is first presented in detail. Then, some preliminary measurements of the fluctuation-diamagnetism (FD) above the transition temperature Tc are presented. The moderate uniaxial anisotropy of this compound allowed us to observe the fluctuation effects for magnetic fields H applied in the two main crystallographic orientations. The superconducting parameters resulting from the characterization suggest that it is possible to do a reliable analysis of the FD in terms of the Ginzburg-Landau (GL) theory.
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