Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/15041
ชื่อเรื่อง: Effect of interband interaction on isotope effect exponent of MgB 2 superconductors
ผู้แต่ง: Udomsamuthirun P.
Kumvongsa C.
Burakorn A.
Changkanarth P.
Keywords: Electron-phonon interaction
Interband interaction
Isotope effect exponent
Electrons
Isotopes
Magnesium compounds
Phonons
Superconducting materials
วันที่เผยแพร่: 2006
บทคัดย่อ: The exact formula of Tc's equation and the isotope effect exponent of two-band s-wave superconductors in the weak-coupling limit are derived by considering the influence of interband interaction. In each band, our model consists of two pairing interactions: The electron-phonon interaction and non-electron-phonon interaction. We find that the isotope effect exponent of MgB2, α = 0.3 with Tc ≈ 40 K can be found in the weak coupling regime and interband interaction of electron-phonon shows more effect on the isotope effect exponent than on the interband interaction of non-phonon. © Indian Academy of Sciences.
URI: https://ir.swu.ac.th/jspui/handle/123456789/15041
https://www.scopus.com/inward/record.uri?eid=2-s2.0-33645100098&doi=10.1007%2fBF02704501&partnerID=40&md5=26110a155302441fb3d4a6342a705b16
ISSN: 3044289
Appears in Collections:Scopus 1983-2021

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