Local inspection of magnetic properties in GdMnIn by measuring hyperfine interactions
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GdMnIn is reported to crystallize in the hexagonal MgNi2-type structure presenting a spin-glass behavior with no magnetic order attributed to
the triangular spin frustration of magnetic ions. In the present work, FC-ZFC magnetization, specific heat and AC susceptibility measurements
along with the local magnetic exchange measured by hyperfine interactions at In sites are used to investigate the magnetic behavior in GdMnIn
compound. The ZFC-FC magnetization curves exhibit an inflection which was ascribed to the antiferromagnetic transition at TN= 145 K.
These curves also give an indication of thermomagnetic irreversibility at 118 K, which along with the absence of inflection in specific heat
results might be associated to spin-glass behavior. Results of AC susceptibility and magnetic hyperfine field measured using 111In(111Cd) probe
nuclei carried out by perturbed angular correlations (PAC) technique did not show evidence of spin-glass behavior. The thermomagnetic
irreversibility in FC-ZFC curves along with results of hyerfine interactions suggest the presence of magneto-crystalline anisotropy effects and
a weak long-range coupling in GdMnIn.
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CABRERA-PASCA, G.A.; MAGNO, J.F.; FERREIRA, W.L.; CAMPOS, A.C.; BOSCH-SANTOS, B.; SALES, T.S.N.; PEREIRA, L.F.D.; BURIMOVA, A.; SAXENA, R.N.; FREITAS, R.S.; CARBONARI, A.W. Local inspection of magnetic properties in GdMnIn by measuring hyperfine interactions. AIP Advances, v. 11, n. 1, p. 015322-1 - 015322-6, 2021. DOI: 10.1063/9.0000037. Disponível em: http://200.136.52.105/handle/123456789/31781. Acesso em: 30 Dec 2025.
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