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Type: Artigo de periódico
Title: 3d Xy Versus 3d Lll Revisited In Yba2cu3o7-δ
Author: Ujevic S.
da Silva E.Z.
Salem-Sugui Jr. S.
Abstract: We analyzed magnetization data from a YBa2Cu3O7-δ sample with a sharp transition at Tc = 92.3 K. Two models are discussed and compared. The XY model in three dimensions and the Ginzburg-Landau description based in the lowest Landau level approximation. We confirm the validity of the XY model scaling on low applied magnetic fields. For high applied magnetic fields the scaling behavior of both models provides similar results. © 2006 Elsevier B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/j.physc.2006.11.006
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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