Mapping the magnetic hyperfine field in GdCosub(5)
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The magnetic hyperfine field (Bhf) in ferrimagnetic GdCo5 compound has been investigated as a function of temperature by Mössbauer effect (ME) spectroscopy and perturbed angular correlation (PAC) spectroscopy using 119Sn and 111Cd probe nuclei, respectively. Results show that the non-magnetic probe atoms 119Sn and 111Cd substitute all three non-equivalent positions in GdCo5: Gd, CoI, and CoII. For 119Sn and 111Cd probes at Gd sites, the saturation magnetic hyperfine fields are very different with values of Bhf1 = 57.0(1) T and Bhf1= 20.7(1) T, respectively. For 119Sn and 111Cd atoms localized at CoI and CoII sites the magnetic hyperfine fields are practically identical and, in saturation, reach the values of Bhf2 = 11.6(1) T and Bhf2 = 11.1(2) T, and Bhf3 = 14.8(1) T and Bhf3 = 14.4(2) T, respectively.
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KRYLOV, V.I.; BOSCH SANTOS, B.; CABRERA PASCA, G.A.; DELYAGIN, N.N.; CARBONARI, A.W. Mapping the magnetic hyperfine field in GdCosub(5). AIP Advances, v. 6, p. 056024-1 - 056024-6, 2016. Disponível em: http://repositorio.ipen.br/handle/123456789/26468. Acesso em: 30 Jun 2026.
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