Experimental evidence of quantum tunnelling in TlBaCaCuO

A. Garcia*, X. X. Zhang, A. M. Testa, D. Fiorani, J. Tejada

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Experimental evidence of a crossover from a thermally to a non-thermally activated flux motion is reported for TlBaCaCuO. It was obtained by measuring the time decay of both zero-field-cooled and remanent magnetization. The measured relaxation rates at low temperature are in good agreement with the prediction of the quantum collective creep theory for anisotropic superconductors in the low-field-single-vortex pinning.

Original languageEnglish (US)
Article number021
Pages (from-to)10341-10346
Number of pages6
JournalJournal of Physics: Condensed Matter
Issue number50
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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