Magnetic resistivity in Bi2Sr2Ca(Cu 1-xCox)2Od epitaxial thin films

T. R. Yang*, G. Ilonca, V. Toma, P. Balint, M. Bodea

*此作品的通信作者

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 of high-quality epitaxial c-oriented Bi2Sr2Ca(Cu1-xCo x)2Od thin films with 0 ≤ x ≤ 0.025 has been studied as a function of temperature and magnetic field. For all samples, the effective activation energy scales as U(T, μoH) = Uo(1-T/Tc)mHn with exponent m = 1.25 ± 0.03, n = -1/2 and the field scaling 1/μoH and -UμoH for thick films and ultra thin films, respectively. The results are discussed taking into account of the influence of the Co substitution with a model in which U(T, H) arises from plastic deformations of the viscous flux liquid above the vortex-glass transition temperature.

原文英語
頁(從 - 到)127-132
頁數6
期刊International Journal of Modern Physics B
21
發行號1
DOIs
出版狀態已發佈 - 2007 一月 10

ASJC Scopus subject areas

  • 統計與非線性物理學
  • 凝聚態物理學

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