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Specific heat of single crystal MgB_2: a two-band superconductor with two different anisotropies by Bouquet, F.; Wang, Y.; Sheikin, I.; Plackowski, T.; Junod, A.; Lee, S.; Tajima, S. is a scholarly article available to read on EtoBox.

What is Specific heat of single crystal MgB_2: a two-band superconductor with two different anisotropies about?

Heat-capacity measurements of a 39 microgramm MgB_2 single crystal in fields up to 14 T and below 3 K allow the determination of the low-temperature linear term of the specific heat, its field dependence and its anisotropy. Our results are compatible with two-band superconductivity, the band carrying the small gap being isotropic, that carrying the large gap having an anisotropy of ~ 5. Three different upper critical fields are thus needed to describe the superconducting state of MgB2.

Author

Bouquet, F.; Wang, Y.; Sheikin, I.; Plackowski, T.; Junod, A.; Lee, S.; Tajima, S.

Published

2002

Language

EN