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Temperature dependence of the magnetic hyperfine field at Ce on Gd sites in GdAg compound

Hyperfine Interactions, ISSN: 0304-3843, Vol: 158, Issue: 1-4, Page: 125-129
2004
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Conference Paper Description

Perturbed gamma-gamma angular correlation technique was used to measure the magnetic hyperfine field at Gd sites in the intermetallic compound GdAg using the La→Ce nuclear probe. A major and well-defined magnetic interaction is observed at Ce substituting Gd sites in GdAg below 130 K, corresponding to a ferromagnetic ordering of Gd moments. The temperature dependence of magnetic hyperfine field, however, shows a sharp deviation from an expected Brillouin-like behavior for temperatures below 75 K. This additional magnetic interaction is believed to result from the polarization of Ce spin moments induced by the magnetic field from Gd atoms. © Springer 2005.

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