Observation of antiferromagnetic resonance affected by hyperfine interaction in GdBi

Takahiro Tomimatsu, Keiichi Koyama, Makoto Yoshida, Dexin Li, Mitsuhiro Motokawa

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10 Citations (Scopus)


Electron spin resonance (ESR) measurements on a single crystal of GdBi have been performed in the temperature range from 50 to 1.7 K at the frequency range between 58 and 107 GHz to obtain the microscopic information about the magnetic properties. The absorption line of ESR corresponding to g = 2 of the Gd3+ ion is observed at temperatures between 50 and 10 K. With decreasing temperature from 7 K, the absorption line shifts to lower field side. The results obtained indicate that the shift in resonance field is due to a temperature-dependent anisotropy field arising from hyperfine interaction of Gd spin with the Bi nuclear moments. The estimated values of the anisotropy field and the hyperfine anisotropy field are Ba=5.6 × 10-4 T and Bn=7.9 × 10-3 T, respectively, at 4.2 K.

Original languageEnglish
Article number014406
Pages (from-to)144061-144064
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number1
Publication statusPublished - 2003 Jan 1


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