Peak effect on magnetic hysteresis in oxygen-overdoped single crystals of Tl2Ba2CuO6+δ

Ming Xu, T. W. Li, D. G. Hinks, G. W. Crabtree, H. M. Jaeger, Haruyoshi Aoki

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Magnetic hysteresis loops in single crystals of Tl2Ba2CuO6+δ for H∥c have been investigated in order to study the peak effect or "fishtail" feature. The peak effect was observed in a series of oxygen-overdoped crystals covering a wide range in Tc. The peak fields Hpk show scaling behavior with reduced temperature T/Tc, and the normalized slope (Tc/Hpk) (dHpk/dT) is found to assume a nearly constant value for all investigated overdoped Tl-2201 crystals. This suggests that the underlying mechanism for the origin of the peak effect is independent of oxygen defect concentration.

Original languageEnglish
Pages (from-to)13632-13634
Number of pages3
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number21
Publication statusPublished - 1999

ASJC Scopus subject areas

  • Condensed Matter Physics

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