An ESR study of the dynamics of local moments and conduction electrons in ScGd single crystals

S. E. Barnes, K. Baberschke, J. Nagel

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Reports 10 and 35 GHz ESR measurements upon single crystals of ScGd doped with 300 and 2400 PPM. The deduced crystal field parameter is D=-330+or-30 G, the Korringa rate b=200+or-40 G K-1, the g value 2.13+or-5 and the conduction electron lattice rate due to the Gd3+ impurity delta eLGd=3*1011 s-s1 at.%-1. The authors' results represent a prime illustration of the Barnes-Plefka exchange narrowing theory both for the bottleneck and non-bottleneck regimes. In particular, they show for the first time the increased narrowing as a consequence of the bottleneck. Also the authors have shown unambiguously that there is a dynamic effect in the line position for this system, and illustrate this by its angular dependence.

Original languageEnglish (US)
Article number010
Pages (from-to)347-355
Number of pages9
JournalJournal of Physics F: Metal Physics
Issue number2
StatePublished - Dec 1 1983


ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Metals and Alloys

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