Title
<tex>$T_{c}$</tex>for non-s-wave pairing superconductors correlated with coherence length and effective mass
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Lancaster, Pa ,
Subject
Physics
Source (journal)
Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
Volume/pages
62(2000) :21 , p. 13919-13921
ISSN
1098-0121
1550-235X
ISI
000165717200032
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
For unconventional heavy fermion superconductors, typified by UBe13, the superconducting transition temperatures T-c are shown to correlate with a characteristic energy h(2)/(m*xi (2)),m* being the effective mass, and xi the coherence length. For four of the six materials for which T-c, m*, and xi are available, k(B)T(c) similar to 20h(2)/(m*xi (2)). One heavy fermion material, UPd2Al3, reveals a tendency for the above linear behavior to saturate at substantially larger h(2)/(m*xi (2)) than for UBe13. The sixth material considered, URu2Si2, falls between UBe13 and UPd2Al3,. To embrace d-wave pairing in cuprates, a log-log plot reveals that k(B)T(c) similar toh(2)/(m*xi (2)), but more materials for which m* and xi are measured will be required to substantiate the correlation in these high-T-c substances.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/c611e6/6789.pdf
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