Two-band BCS model describes well the thermodynamics of MgB$_2$
Todor M. Mishonov, Valery L. Pokrovsky, Hongduo Wei
TL;DR
This paper demonstrates that a weakly-coupled anisotropic BCS model accurately describes the thermodynamic properties of MgB$_2$, matching experimental data with high precision.
Contribution
It applies the anisotropic BCS theory to MgB$_2$ and shows it can precisely predict energy gap and specific heat behaviors.
Findings
The model matches experimental data within 3-6% accuracy.
Energy gap and specific heat dependences are well described.
Weak coupling anisotropic BCS theory is effective for MgB$_2$ thermodynamics.
Abstract
Based on weakly-coupled anisotropic BCS theory, the dependence of energy gap and specific heat on temperature are evaluated for superconductor MgB, and the results are compared with experimental data.We show that the weak coupling anisotropic BCS theory describes thermodynamic experimental data with high precision 3-6%.
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Taxonomy
TopicsSuperconductivity in MgB2 and Alloys