Field dependence of the hyperfine splitting of holmium in holmium hydroxide

D. St P. Bunbury*, C. Carboni, M. A.H. McCausland

*Corresponding author for this work

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13 Citations (Scopus)


The hyperfine splitting of 165Ho in holmium hydroxide has been studied by spin-echo NMR at liquid-helium temperatures in fields up to 8 T. The behaviour of the dipolar splitting in fields below 0.5 T confirms that the hyperfine parameters are not thermally averaged and that the NMR signals arise solely from ions in the electronic ground state. The field dependence of the hyperfine splitting is not accurately described by crystal-field parameters derived from magnetic susceptibility measurements on Ho(OH)3, but is in close agreement with calculations based on parameters derived from optical spectroscopy of Ho3+ in Y(OH)3. The following quantities are derived from the measurements: spontaneous magnetisation and longitudinal susceptibility of Ho(OH)3 at T=0:M0=(1.181+or-0.001) MA m-1 and chi /sub ///=0.0146+or-0.0005; ratio of nuclear to electronic anti-shielding factors for Ho3+ in the hydroxide: gamma N/ gamma E=149+or-15.

Original languageEnglish
Article number014
Pages (from-to)1309-1327
Number of pages19
JournalJournal of Physics: Condensed Matter
Issue number7
Publication statusPublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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