Title
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Average kinetic energy density of Cooper pairs above in , , and Nb
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Author
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Abstract
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We have obtained isofield curves for the square root of the average kinetic energy density of the superconducting state for three single crystals of underdoped YBa(2)Cu(3)O(7-x), an optimally doped single crystal of Bi(2)Sr(2)CaCu(2)O(8+delta), and Nb. These curves, determined from isofield magnetization versus temperature measurements and the virial theorem of superconductivity, probe the order parameter amplitude near the upper critical field. The striking differences between the Nb and the high-T(c) curves clearly indicate for the latter cases the presence of a unique superconducting condensate below and above T(c). |
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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 and materials physics. - Lancaster, Pa, 1998 - 2015
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Publication
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Lancaster, Pa
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2007
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ISSN
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1098-0121
[print]
1550-235X
[online]
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DOI
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10.1103/PHYSREVB.76.132502
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Volume/pages
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76
:13
(2007)
, p. 1-4
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Article Reference
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132502
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ISI
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000250619800018
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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