Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/27423
ชื่อเรื่อง: The Investigation of an Anomalous Isotope Exponent of Superconductors Under High Pressure in Weak-Coupling Limit
ผู้แต่ง: Chanpoom T.
Ruangrungrote S.
Udomsamuthirun P.
Keywords: Anomalous behaviour
Critical temperature
Isotope effect
Pressure effect
Weak-coupling
วันที่เผยแพร่: 2022
สำนักพิมพ์: Springer
บทคัดย่อ: Effects of pressure and isotope exponent of superconductor on critical temperature were investigated within the weak-coupling limit. The dispersion relation of carriers in the superconducting state under high pressure was obtained, including the electron–phonon interaction and Coulomb potentials. The equations of the critical temperature and isotope effect were analytically derived and numerically calculated. The enhancement of the critical temperature depended on the external pressure upon the unit cell, resulting in the narrow fluctuation in density of state. It was noticed that the more the fluctuation height increased, the higher the critical temperature was performed. The range of the isotope effect exponent (α) was 0 < α< 0.5 in the normal behaviour, while α> 0.5 in the anomalous behaviour. Also, a negative isotope effect exponent was found in this work. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
URI: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85130106867&doi=10.1007%2fs10909-022-02736-6&partnerID=40&md5=611de5136b3264b68c88bee530590a55
https://ir.swu.ac.th/jspui/handle/123456789/27423
ISSN: 222291
Appears in Collections:Scopus 2022

Files in This Item:
There are no files associated with this item.


Items in SWU repository are protected by copyright, with all rights reserved, unless otherwise indicated.