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Temperature dependence of transmittance and effective surface resistance of MgB2 film

Authors :
M. Moarrefi-Romeileh
A.A. Joata-bayrami
Mohammad Reza Abolhassani
H. Yavari
Source :
Physica B: Condensed Matter. 406:4135-4138
Publication Year :
2011
Publisher :
Elsevier BV, 2011.

Abstract

Using the Kubo formula approach and Green's function method, the temperature dependence of the transmittance and effective surface resistance of high quality MgB2 film are calculated in the framework of the two-band model. For large interval of temperatures below TC our results are in agreement with experimental data. We show a single-gap model based on BCS theory, which is insufficient to understand such quantities, but a two-band model with different symmetries can describes the experimental data rather well. In the two-gap model we consider that the transmittance and effective surface resistance are a weighted sum of the contributions from σ and π bonds and hybridization between them is negligible.

Details

ISSN :
09214526
Volume :
406
Database :
OpenAIRE
Journal :
Physica B: Condensed Matter
Accession number :
edsair.doi...........9bed8f10a336b50dec449e41193e63ee
Full Text :
https://doi.org/10.1016/j.physb.2011.08.011