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Critical field of 2H-NbSe2 down to 50mK. | LitMetric

Critical field of 2H-NbSe2 down to 50mK.

Springerplus

Institut Néel CNRS/UJF UPR2940, 25 rue des Martyrs, BP 166, Grenoble, Cedex, 38042 France.

Published: February 2015

Critical field of 2H-NbSe2 is determined for the field perpendicular to the conducting planes down to 50 mK, by magnetoresistance measurements. It is the first time that such a measurement is extended below 1 K. Variations are almost linear down to 1 K, with a little upward curvature, and the slope of H c 2⊥ (T) decreases below 1 K. The reduced critical field extrapolates to 0.9 when the temperature approaches zero, higher than the WHH upper limit of 0.69 conformably with the extension of this model for anisotropic superconductors. Angular dependence of the critical field is also determined at 5.5 K. Variations are the same as expected for a 3D-anisotrpic superconductor and the anisotropy value confirms previous results.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4320156PMC
http://dx.doi.org/10.1186/2193-1801-3-16DOI Listing

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