Study of the magnetic properties of GdZn compound using PAC spectroscopy with 140Ce and 111Cd as probe nuclei
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Hyperfine Interactions
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In this work, we have investigated magnetic properties of the ferromagnetic GdZn compound by perturbed γ–γ angular correlation (PAC) spectroscopy
using 140La→140Ce and 111In→111Cd as probe nuclei. Measurements were carried
out in the temperature range of 10–300 K for the 111Cd probe and below Curie
temperature (TC) for the 140Ce probe. GdZn compound exhibits the cubic structure
of CsCl prototype and orders ferromagnetically at TC = 268 K. PAC measurements
taken with 111In-111Cd probes showed an electric quadrupole interaction above TC
and a combined electric quadrupole plus magnetic interaction below TC that has
been assigned to 111In probes substituing Zn atoms. In the case of 140Ce probes
nuclei, PAC measurements below TC showed only a magnetic interaction which
was assigned to 140La probe substituting Gd atom positions. The results for the
measured magnetic hyperfine field are discussed in terms of the spin polarization
of the magnetic ions.
Como referenciar
BOSCH-SANTOS, B.; CABRERA-PASCA, G.A.; CARBONARI, A.W. Study of the magnetic properties of GdZn compound using PAC spectroscopy with 140Ce and 111Cd as probe nuclei. Hyperfine Interactions, v. 197, p. 105-109, 2010. DOI: 10.1007/s10751-010-0231-2. Disponível em: http://repositorio.ipen.br/handle/123456789/4553. Acesso em: 20 Mar 2026.
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