Impurity effects on spin correlations in electron-doped Pr 1-xLaCexCu1-yZnyO4 by a μsR study

A. Hino, M. Fujita, I. Watanabe, K. Yamada

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

We performed zero-field muon spin relaxation/rotation measurements on the electron-doped system Pr1-xLaCexCu1-yZn yO4 to study the impurity effect on spin correlations in both magnetic and superconducting phases. In the antiferromagnetic phase with x = 0.08, the Néel temperature TN decreases monotonically upon Zn substitution, while with approaching the superconducting boundary (x = 0.10), the effect of Zn substitution on the suppression of TN becomes weak (x = 0.08). In the superconducting phase, in contrast to the hole-underdoped system, suppression of superconductivity by Zn substitution neither enhance well-defined AF correlations nor induce it at least down to T = 6 K. The impurity effect is discussed from a viewpoint of dilution effect of the Zn on the Cu spin lattice.

Original languageEnglish
Pages (from-to)309-314
Number of pages6
JournalPhysica C: Superconductivity and its applications
Volume426-431
Issue numberI
DOIs
Publication statusPublished - 2005 Oct 1
EventProceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity -
Duration: 2004 Nov 232004 Nov 25

Keywords

  • Electron-doped superconductivity
  • PrLaCeCu ZnO
  • ZF-μSR

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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