dc.contributor.author |
Pakokthom C. |
|
dc.contributor.author |
Krunavakarn B. |
|
dc.contributor.author |
Udomsamuthirun P. |
|
dc.contributor.author |
Yoksan S. |
|
dc.date.accessioned |
2021-04-05T04:33:38Z |
|
dc.date.available |
2021-04-05T04:33:38Z |
|
dc.date.issued |
1998 |
|
dc.identifier.issn |
8961107 |
|
dc.identifier.other |
2-s2.0-0032132061 |
|
dc.identifier.uri |
https://ir.swu.ac.th/jspui/handle/123456789/15346 |
|
dc.identifier.uri |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032132061&doi=10.1023%2fA%3a1022645630932&partnerID=40&md5=c9ad2cd38e913125771078eccc8cdc2f |
|
dc.description.abstract |
The gap-to-Tc ratio (R) of high-temperature superconductors is calculated in the context of d symmetry of the superconducting order parameter and a two-dimensional Van Hove singularity in the density of states, using the BCS theory for weak coupling. Exact numerical calculation and an analytic formula for R are given. The ratios are found to be substantially larger than the BCS weak coupling limit of 3.53. The overall dependence of R on ωD/Tc, where ωD is the cutoff frequency, is given. © 1998 Plenum Publishing Corporation. |
|
dc.subject |
Approximation theory |
|
dc.subject |
Band structure |
|
dc.subject |
Fermi level |
|
dc.subject |
High temperature superconductors |
|
dc.subject |
Integral equations |
|
dc.subject |
Integration |
|
dc.subject |
Photoemission |
|
dc.subject |
Two dimensional |
|
dc.subject |
Waves |
|
dc.subject |
Bismuth compounds |
|
dc.subject |
Electronic density of states |
|
dc.subject |
Mathematical models |
|
dc.subject |
Numerical analysis |
|
dc.subject |
Superconducting transition temperature |
|
dc.subject |
BCS |
|
dc.subject |
d-wave superconductors |
|
dc.subject |
Gap-to-Tc ratio |
|
dc.subject |
Van Hove singularity |
|
dc.subject |
Two-dimensional Van Hove scenario |
|
dc.subject |
Oxide superconductors |
|
dc.title |
Reduced-gap ratio of high-Tc cuprates within the d-wave two-dimensional van hove scenario |
|
dc.type |
Article |
|
dc.rights.holder |
Scopus |
|
dc.identifier.bibliograpycitation |
Journal of Superconductivity. Vol 11, No.4 (1998), p.429-432 |
|
dc.identifier.doi |
10.1023/A:1022645630932 |
|