Quantum relaxation of vortices in a sintered Tl-2223 high-Tc superconductor

X. X. Zhang*, A. Garcia, J. Tejada, Y. Xin, K. W. Wong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The time relaxation of the zero-field cooled magnetization of a sintered Tl2Ba2Ca2Cu3O10 (Tl-2223) high-Tc superconductor (HTSC) (Tco ≅ 110 K) has been measured as a function of temperature at low (50 Oe) and moderate applied magnetic fields (3 and 6 kOe). It is found that the two-dimensional vortices relax thermally and quantum mechanically at high and low temperatures, respectively, for all applied magnetic fields. It is also found that the crossover temperature between the thermal and the quantum regime changes from 2.2 K to 10 K, as the applied field decreases.

Original languageEnglish (US)
Pages (from-to)2957-2958
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume235-240
Issue numberPART 5
DOIs
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

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

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