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Thermodynamics of a...
Thermodynamics of a heavy-ion-irradiated superconductor : The zero-field transition
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- van der Beek, C. J. (author)
- Laboratoire des Solides Irradiés, CNRS-UMR 7642 & CEA/DSM/DRECAM, Ecole Polytechnique, Palaiseau cedex, France
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- Klein, Thierry (author)
- Institut Néel, Grenoble, France
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- Brusetti, Rene (author)
- Institut Néel, Grenoble, France
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- Marcenat, Christophe (author)
- Commissariat à l'Energie Atomique, Grenoble, france
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- Wallin, Mats (author)
- KTH,Statistisk fysik,Department of Theoretical Physics, KTH, Stockholm, Sweden
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- Teitel, S. (author)
- Department of Physics and Astronomy, University of Rochester, Rochester, New York, USA
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- Weber, Hans (author)
- Luleå tekniska universitet,Materialvetenskap
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(creator_code:org_t)
- 2007
- 2007
- English.
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In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 75:10
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Specific heat measurements show that the introduction of amorphous columnar defects considerably affects the transition from the normal to the superconducting state in zero magnetic field. Experimental results are compared to numerical simulations of the three-dimensional XY model for both the pure system and the system containing random columnar disorder. The numerics reproduce the salient features of experiment, showing in particular that the specific heat peak changes from cusplike to smoothly rounded when columnar defects are added. By considering the specific heat critical exponent alpha, we argue that such behavior is consistent with recent numerical work [A. Vestergren , Phys. Rev. B 70, 054508 (2004)] showing that the introduction of columnar defects changes the universality class of the transition.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- high-temperature superconductors
- bose-glass transition
- correlated disorder
- columnar defects
- ybacuo crystals
- single-crystals
- high-density
- upper limit
- yba2cu3o7-delta
- localization
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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