Knight shifts and relaxation in gadolinium above the curie temperature |
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| Authors: | E. Wäckelgārd O. Hartmann E. Karlsson R. Wäppling L. Asch G. M. Kalvius J. Chappert A. Yaouanc |
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| Affiliation: | (1) Dept. of Physics, Univ. of Uppsala, S-751 21 Uppsala, Sweden;(2) Physik-Dept. E 15, Technische Univ. München, Garching, W-Germany;(3) DRF/Service de Physique, CENG, Grenoble, France |
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| Abstract: | We have studied the transverse μSR signal in Gd metal in the temperature region 1–2 TC, and it is demonstrated that measurements in the paramagnetic range can be used to obtain the hyperfine field at the muon site, as well as to give information on the fluctuations of the Gd spins. The critical exponent for slowing down of Gd spin fluctuations is 0.56(5) above 1.05 TC but decreases to 0.15(5) below 1.05 TC. Comparisons with results from PAC and Mössbauer measurements are discussed. |
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