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

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)127-132
Number of pages6
JournalInternational Journal of Modern Physics B
Issue number1
Publication statusPublished - 2007 Jan 10
Externally publishedYes


  • Epitaxial films
  • Resistivity
  • Superconducting

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics


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