3D XY versus 3D LLL revisited in YBa2Cu3O7-δ

被引：1
|
作者：
Ujevic, Sebastian [1 ]
da Silva, E. Z.
Salem-Sugui, S., Jr.
机构：
[1] Univ Brasilia, CIFMC, BR-70904970 Brasilia, DF, Brazil
[2] Univ Estadual Campinas, Inst Fis, BR-13083970 Campinas, SP, Brazil
[3] UFRJ, Inst Fis, BR-68528 Rio De Janeiro, RJ, Brazil
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2007年 / 452卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
high-T-c; superconductors; thermodynamic properties; scaling phenomena;
D O I：
10.1016/j.physc.2006.11.006
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We analyzed magnetization data from a YBa2Cu3O7-delta sample with a sharp transition at T-c = 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. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：1 / 5
页数：5
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