Magnetic interactions on the tin sites in the tin-doped ferromagnetic superconductor Ru1-xSnxSr2GdCu2O8

J. P. Attfield, F. J. Berry, J. Bland, Abbie McLaughlin, M. F. Thomas

Research output: Contribution to journalArticle

Abstract

The magnetic environment of tin in the ferromagnetic superconductor RuSr2GdCu2O8 has been probed by doping Sn-119 ions onto the ruthenium sites. The transferred magnetic hyperfine interaction at the tin site was measured by Mossbauer spectroscopy in the temperature range 4.2-300 K. The spectra show two distinct tin sites. One has four ruthenium nearest-neighbour cations and the other three ruthenium and one tin nearest neighbours. The temperature dependence of the hyperfine fields indicates an ordering temperature of 108 +/- 5 K. The spectra favour parallel alignment of the field with the major axis of the electric field gradient indicating that the ruthenium moments are aligned along the crystallographic c axis.

Original languageEnglish
Pages (from-to)955-961
Number of pages7
JournalJournal of Physics: Condensed Matter
Volume16
DOIs
Publication statusPublished - 2004

Keywords

  • RUSR2GDCU2O8
  • GD
  • CRYSTAL
  • EU

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