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Title
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for non-s-wave pairing superconductors correlated with coherence length and effective mass
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Author
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Abstract
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| 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. |
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Language
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English
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Source (journal)
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Physical review : B : condensed matter. - New York, N.Y., 1978 - 1997
Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
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Publication
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New York, N.Y.
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2000
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ISSN
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0163-1829
[print]
1095-3795
[online]
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DOI
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10.1103/PHYSREVB.62.13919
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Volume/pages
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62
:21
(2000)
, p. 13919-13921
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ISI
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000165717200032
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Full text (Publisher's DOI)
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Full text (open access)
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