Temperature dependence of the hyperfine magnetic field at sup(140)Ce in orthorhombic Tbsub(3)Insub(5)
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Hyperfine Interactions
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Resumo
Time differential perturbed g-g angular correlation technique was used to measure
the magnetic hyperfine field (MHF) at Tb sites in the intermetallic compound Tb3In5 using the 140La Y 140Ce nuclear probe. The measurements were carried out in the temperature range of
8 to 295 K. Two different temperature dependent magnetic frequencies were observed below 30 K,
which were assigned as 140Ce substituting the two inequivalent Tb sites in the orthorhombic
structure of Tb3In5. The temperature dependence of MHF also shows a possible deviation from an
expected Brillouin-like behavior for temperatures below 18 K. A Ne´el transition at 27 K was
observed from magnetization measurements in the samples. The magnetization as a function of the
applied magnetic field was measured at two temperatures, 5 and 40 K, and the results show antiferromagnetic and a typical paramagnetic behavior, respectively. In both cases it was not observed
saturation under high magnetic field.
Como referenciar
OLZON DIONYSIO, M.; SOUZA, S.D.; OLIVEIRA, A.J.A.; CARBONARI, A.W. Temperature dependence of the hyperfine magnetic field at sup(140)Ce in orthorhombic Tbsub(3)Insub(5). Hyperfine Interactions, v. 158, p. 205-209, 2004. DOI: 10.1007/s10751-005-9034-2. Disponível em: http://repositorio.ipen.br/handle/123456789/7647. Acesso em: 30 Dec 2025.
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