Multiband and impurity effects in infrared and optical spectra of MgB2

✍ Scribed by A.B. Kuzmenko

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 761 KB
• Volume: 456
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2007.02.008

✦ Synopsis

A short review of the optical and far-infrared measurements on MgB 2 is given. Multiband and multigap effects are analyzed by comparing optical properties with other experiments and ab initio calculations. The covered topics are: the plasma frequency, electron-phonon interaction, impurity scattering, the effects of C and Al substitution, interband transitions and the far-infrared signatures of the superconducting gaps.