Abstract
Muon spin rotation (µSR) has been used to probe the dynamics of rare-earth ions in situations where the crystal field splittings have important effects. This paper outlines the theory of spin dynamics in such cases and discusses its application to µSR studies in two specific systems: erbium in noble metals and holmium in LuRh4B4. The former shows novel effects of a muon-induced axial crystal field in the otherwise cubic lattice, and the latter exhibits a dramatic change in temperature dependence because of small admixtures from the tetragonal field.
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References
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Richards, P.M. (1984). Spin Dynamics of Rare Earth Ions in Crystal Fields Probed by Muon Spin Rotation. In: Lovesey, S.W., Balucani, U., Borsa, F., Tognetti, V. (eds) Magnetic Excitations and Fluctuations. Springer Series in Solid-State Sciences, vol 54. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-82369-5_37
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DOI: https://doi.org/10.1007/978-3-642-82369-5_37
Publisher Name: Springer, Berlin, Heidelberg
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