Mapping the magnetic hyperfine field in GdCo{sub 5}

Journal Article · Sun May 15 04:00:00 EDT 2016 · AIP Advances

DOI:https://doi.org/10.1063/1.4944654· OSTI ID:22611754

Krylov, V. I. ^[1]; Bosch-Santos, B.; Cabrera-Pasca, G. A.; Delyagin, N. N. ^[2]

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1. Instituto de Pesquisas Energéticas e Nucleares, University of São Paulo, 05508-000, São Paulo (Brazil)
2. Skobeltsyn Institute of Nuclear Physics, Moscow State University, 119992 Moscow (Russian Federation)

The magnetic hyperfine field (B{sub hf}) in ferrimagnetic GdCo{sub 5} compound has been investigated as a function of temperature by Mössbauer effect (ME) spectroscopy and perturbed angular correlation (PAC) spectroscopy using {sup 119}Sn and {sup 111}Cd probe nuclei, respectively. Results show that the non-magnetic probe atoms {sup 119}Sn and {sup 111}Cd substitute all three non-equivalent positions in GdCo{sub 5}: Gd, Co{sub I}, and Co{sub II}. For {sup 119}Sn and {sup 111}Cd probes at Gd sites, the saturation magnetic hyperfine fields are very different with values of B{sub hf1} = 57.0(1) T and B{sub hf1}= 20.7(1) T, respectively. For {sup 119}Sn and {sup 111}Cd atoms localized at Co{sub I} and Co{sub II} sites the magnetic hyperfine fields are practically identical and, in saturation, reach the values of B{sub hf2} = 11.6(1) T and B{sub hf2} = 11.1(2) T, and B{sub hf3} = 14.8(1) T and B{sub hf3} = 14.4(2) T, respectively.

• OSTI ID: 22611754
• Journal Information: AIP Advances, Journal Name: AIP Advances Journal Issue: 5 Vol. 6; ISSN AAIDBI; ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMS
BINARY ALLOY SYSTEMS
CADMIUM 111
COBALT COMPOUNDS
FERRIMAGNETIC MATERIALS
GADOLINIUM COMPOUNDS
HYPERFINE STRUCTURE
MAGNETIC FIELDS
MAGNETIC PROBES
MOESSBAUER EFFECT
PERTURBED ANGULAR CORRELATION
SATURATION
SPECTROSCOPY
TEMPERATURE DEPENDENCE
TIN 119