Scaling behavior in normal-state properties of underdoped TmBaCuO single crystals

E. B. Amitin, V. Ya Dikovsky, A. N. Lavrov, A. P. Shelkovnikov

Research output: Contribution to journalArticlepeer-review


Universal behavior of the in-plane resistivity is observed in the normal state of underdoped TmBa2Cu3Ox single crystals. In the region 6.37 < x < 6.71 the dependencies of the resistivity derivative on temperature and oxygen content, ρ′(T, x), can be presented as a universal function of single dimensionless argument T/T*(x). A single electron transport mechanism and a single energy scale in the investigated area of the phase diagram are necessary for the appearance of such scaling effect. In the low-temperature region the behavior of the universal curve is close to exponential ρ′ = ρ′max(A + B exp( -T*/T)). This fact may point to an important role of pseudogap or spin gap effects in transport properties of the cuprate systems.

Original languageEnglish
Pages (from-to)526-527
Number of pages2
JournalPhysica B: Condensed Matter
StatePublished - 1 Jan 1999
Externally publishedYes


  • Pseudogap
  • Resistivity
  • Scaling

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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