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Title
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Thermal expansion of the superconducting ferromagnet UCoGe
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Author
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Abstract
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| We report measurements of the coefficient of linear thermal expansion, alpha(T), of the superconducting ferromagnet UCoGe. The data taken on a single-crystalline sample along the orthorhombic crystal axes reveal a pronounced anisotropy with the largest length changes along the b axis. The large values of the step sizes Delta alpha at the magnetic and superconducting phase transitions provide solid evidence for bulk magnetism and superconductivity. Specific-heat measurements corroborate bulk superconductivity. Thermal-expansion measurements in magnetic fields B parallel to a, b show Delta alpha at T(C) grows rapidly, which indicates the character of the ferromagnetic transition becomes first orderlike. |
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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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2010
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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.82.052502
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Volume/pages
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82
:5
(2010)
, p. 1-4
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Article Reference
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052502
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ISI
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000281138800001
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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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