Activation energy of Bi2Sr2Ca1-xErx Cu2O8+d epitaxial thin films

Tzuen Rong Yang, Gheorghe Ilonca, Aurel Pop, G. Ştiufiuc, C. Lung

研究成果: 雜誌貢獻期刊論文同行評審

摘要

The scaling behavior of the effective activation energy U (T,H) of epitaxial oriented Bi2Sr2Ca1-xErxCu 2O8+d thin films with 0 ≤ x ≤ 0.10 has been studied as function of temperature and magnetic field. It has been found that the activation energy scales as U (H,T) = Uo (1-t)m Hn with exponent m = 1.20±0.03 and n = -1/2. The field and temperature dependence of the activation energy, as well as its overall magnitude, is consistent with a model in which U (T, H) arises from plastic deformations of viscous flux liquid above the vortex-glass transition temperature.

原文英語
頁(從 - 到)539-543
頁數5
期刊Journal of Low Temperature Physics
131
發行號3-4
DOIs
出版狀態已發佈 - 2003 五月

ASJC Scopus subject areas

  • 原子與分子物理與光學
  • 材料科學(全部)
  • 凝聚態物理學

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