Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/15278
ชื่อเรื่อง: Dependence of the gap ratio on the fermi level shift in a van hove superconductor
ผู้แต่ง: Kaskamalas S.
Krunavakarn B.
Rungruang P.
Yoksan S.
Keywords: Approximation theory
Energy gap
Fermi level
Fermi level shift
Gap ratio
Van Hove superconductor
High temperature superconductors
วันที่เผยแพร่: 2000
บทคัดย่อ: The dependence of the zero temperature gap to the critical temperature for s- and d-wave superconductors on the Fermi level shift (δ) from the Van Hove singularity is studied within the BCS theory. Exact numerical calculations for the s and d gap ratios are carried out and approximate analytic expressions for the ratio are given. We find that the maximum gap ratio occurs at δ = 0 and it decreases slowly with increasing δ, and that this behavior is symmetric with respect to δ. ©2000 Plenum Publishing Corporation.
URI: https://ir.swu.ac.th/jspui/handle/123456789/15278
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0034138405&partnerID=40&md5=9877cc1bf731f60580d05cee419f7075
ISSN: 15571939
Appears in Collections:Scopus 1983-2021

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