Superconductivity of Magnesium Diboride: Theoretical Aspects

TL;DR

This paper reviews the theoretical understanding of superconductivity in Magnesium Diboride, focusing on band structure calculations, two-gap superconductivity, and its implications like critical field anisotropy and microwave conductivity.

Contribution

It provides a comprehensive theoretical analysis of two-gap superconductivity in Magnesium Diboride based on band structure calculations.

Findings

Identification of two-gap superconductivity in MgB2

Discussion of upper critical field anisotropy

Analysis of microwave conductivity behavior

Abstract

In this work we review our present understanding of superconductivity in Magnesium Diboride from the theoretical perspective as it evolves from band structure calculations. Particular emphasis is placed on two gap superconductivity. Some of its peculiar consequences are discussed, in particular upper critical field anisotropy and microwave conductivity.