Muon-spin-relaxation study on the Cu-spin state of Bi2Sr2Ca1-xYx(Cu1-y Zny)2O8+δ around the hole concentration of 1/8 per Cu

I. Watanabe, M. Akoshima, Y. Koike, S. Ohira, K. Nagamine

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Muon-spin-relaxation (μSR) measurements were applied to the partially Zn-substituted Bi-2212 system, Bi2Sr2Ca1-xYx(Cu1-y Zny)2O8+δ, to study the Cu-spin state in a wide range of the hole concentration, p. Singularity of the magnetic correlation between Cu spins at p∼1/8 per Cu has been confirmed clearly, proving the existence of the so-called "1/8 effect" in the Bi-2212 system. The muon-spin depolarization rate of the Zn-substituted sample with p∼1/8 per Cu (x=0.3125 and y=0.025) at 0.30 K has been found to exhibit nearly a root-square dependence on the magnetic field applied along the initial muon-spin direction. This field dependence can be explained by assuming that a magnetically excited state of Cu spins moves in a one-dimensional direction producing fluctuating internal fields at the muon sites. The present μSR measurements may support the existence of the stripe correlations of spins and holes in the Bi-2212 system also.

Original languageEnglish
Pages (from-to)14524-14530
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume62
Issue number21
DOIs
Publication statusPublished - 2000 Dec 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Muon-spin-relaxation study on the Cu-spin state of Bi<sub>2</sub>Sr<sub>2</sub>Ca<sub>1-x</sub>Y<sub>x</sub>(Cu<sub>1-y</sub> Zn<sub>y</sub>)<sub>2</sub>O<sub>8+δ</sub> around the hole concentration of 1/8 per Cu'. Together they form a unique fingerprint.

  • Cite this