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http://dx.doi.org/10.1038/nature00898

has been cited by the following article:

• TITLE: Frequency Dependence of Optical Conductivity in MgB2 Superconductor

  AUTHORS: Adel Shojaei, Mohammad Moarrefi-Romeileh, Asadollah Joata-Bayrami

  KEYWORDS: MgB2, Optical Conductivity, Two Gap Model, BCS Theory, Green Function Theory

  JOURNAL NAME: World Journal of Condensed Matter Physics, Vol.5 No.4, November 30, 2015

  ABSTRACT: Using Green’s function method, the frequency dependence of optical conductivities of high-quality MgB2 film is calculated in the framework of the single- and two-band model. By comparing the numerical and experimental results, it is shown that the single-gap isotropic model is insufficient to understand consistently optical behaviors. Also, it is concluded that the two-band model consistently describes the optical behaviors. In the two-gap model, we consider that the both components of optical conductivity are a weighted sum of the contribution from σ and π bonds and hybridization between them is negligible.