2002/10/21 by Cătălin Paşcu Moca, C. P. Moca, Moca, C. P. +3
Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Superconductivity (cond-mat.supr-con) #Superconductivity in MgB2 and Alloys #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0210445
5 pages, 3 figures
arxiv created 2002/10/21 · openalex publication_date 2002/10/21 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Within a two-band, strong coupling model we analyze SIS-tunneling conductance, Raman scattering and optical conductivity measured on MgB2 samples. We find that features observed in tunneling and Raman spectroscopy at intermediate energies ω=Δσ+Δπ≃ 8÷10meV can be consistently explained when incoherent scattering between σ and π band is considered. We calculate the optical conductivity and find that strong coupling effects are important for explaining the presently available data, and predict the location and magnitude of interband scattering features for this spectroscopic probe as well.