Publication: Effect of density of state on isotope effect exponent of two-band superconductors
| dc.contributor.author | Udomsamuthirun P. | |
| dc.contributor.author | Kumvongsa C. | |
| dc.contributor.author | Burakorn A. | |
| dc.contributor.author | Changkanarth P. | |
| dc.contributor.author | Yoksan S. | |
| dc.date.accessioned | 2021-04-05T04:32:30Z | |
| dc.date.available | 2021-04-05T04:32:30Z | |
| dc.date.issued | 2005 | |
| dc.date.issuedBE | 2548 | |
| dc.description.abstract | The exact formula of Tc's equation and the isotope effect exponent of two-band s-wave superconductors in weak-coupling limit are derived by considering the influence of two kinds of density of state: constant and van Hove singularity. The paring interaction in each band consisted of two parts: the electron-phonon interaction and non-electron-phonon interaction are included in our model. We find that the interband interaction of electron-phonon show more effect on isotope exponent than the intraband interaction and the isotope effect exponent with constant density of state can fit to experimental data, MgB2 and high-Tc superconductor, better than van Hove singularity density of state. © 2005 Elsevier B.V. All rights reserved. | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | Physica C: Superconductivity and its Applications. Vol 425, (2005), p.149-154 | |
| dc.identifier.doi | 10.1016/j.physc.2005.07.001 | |
| dc.identifier.issn | 9214534 | |
| dc.identifier.other | 2-s2.0-24144433864 | |
| dc.identifier.uri | https://swu-dspace2.eval.plus/handle/123456789/6076 | |
| dc.rights.holder | Scopus | |
| dc.subject.other | Current density | |
| dc.subject.other | Electrons | |
| dc.subject.other | Phonons | |
| dc.subject.other | Density of state | |
| dc.subject.other | Isotope effect exponent | |
| dc.subject.other | Two-band superconductors | |
| dc.subject.other | Weak coupling | |
| dc.subject.other | Superconducting materials | |
| dc.title | Effect of density of state on isotope effect exponent of two-band superconductors | |
| dc.type | Article | |
| dspace.entity.type | Publication | |
| swu.datasource.scopus | https://www.scopus.com/inward/record.uri?eid=2-s2.0-24144433864&doi=10.1016%2fj.physc.2005.07.001&partnerID=40&md5=5f8d39b834037c45a2b9a8d3f207fa9c |