Study of the critical behaviour of the magnetization and electrical resistivity in cubic La(Fe, Si)13 compounds

T. T.M. Palstra, J. A. Mydosh, G. J. Nieuwenhuys, A. M. van der Kraan, K. H.J. Buschow

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Abstract

The magnetic properties of the cubic NaZn13 type pseudobinary compounds La(TxSi1-x)13 were studied for T = Fe, Co and Ni in the temperature range 4.2-300 K. 57Fe Mössbauer spectroscopy was performed on LaFe11Si2 and 57Fe-doped LaCo11Si2. The compounds with T = Fe or Co are ferromagnetic, while the compound LaNi11Si2 is a Pauli paramagnet. The critical behaviour around the Curie temperature Tc was studied in La(FexSi1-x)13 by measuring the temperature dependences on the zero-field susceptibility and the electrical resistivity. The critical exponent γ in the expression χ ∝ (T - Tc) was found to be close to 1.38 corresponding to an isotropic Heisenberg ferromagnet. The anomalous critical behaviour shown by electrical resistivity can be explained in terms of lattice softening associated with the Invar effect.

Original languageEnglish
Pages (from-to)290-296
Number of pages7
JournalJournal of magnetism and magnetic materials
Volume36
Issue number3
DOIs
Publication statusPublished - 2 Apr 1983
Externally publishedYes

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Magnetization
magnetization
electrical resistivity
Curie temperature
softening
Magnetic properties
Spectroscopy
exponents
magnetic properties
magnetic permeability
Temperature
temperature dependence
spectroscopy
temperature

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Palstra, T. T.M. ; Mydosh, J. A. ; Nieuwenhuys, G. J. ; van der Kraan, A. M. ; Buschow, K. H.J. / Study of the critical behaviour of the magnetization and electrical resistivity in cubic La(Fe, Si)13 compounds. In: Journal of magnetism and magnetic materials. 1983 ; Vol. 36, No. 3. pp. 290-296.
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abstract = "The magnetic properties of the cubic NaZn13 type pseudobinary compounds La(TxSi1-x)13 were studied for T = Fe, Co and Ni in the temperature range 4.2-300 K. 57Fe M{\"o}ssbauer spectroscopy was performed on LaFe11Si2 and 57Fe-doped LaCo11Si2. The compounds with T = Fe or Co are ferromagnetic, while the compound LaNi11Si2 is a Pauli paramagnet. The critical behaviour around the Curie temperature Tc was studied in La(FexSi1-x)13 by measuring the temperature dependences on the zero-field susceptibility and the electrical resistivity. The critical exponent γ in the expression χ ∝ (T - Tc)-γ was found to be close to 1.38 corresponding to an isotropic Heisenberg ferromagnet. The anomalous critical behaviour shown by electrical resistivity can be explained in terms of lattice softening associated with the Invar effect.",
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Study of the critical behaviour of the magnetization and electrical resistivity in cubic La(Fe, Si)13 compounds. / Palstra, T. T.M.; Mydosh, J. A.; Nieuwenhuys, G. J.; van der Kraan, A. M.; Buschow, K. H.J.

In: Journal of magnetism and magnetic materials, Vol. 36, No. 3, 02.04.1983, p. 290-296.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Study of the critical behaviour of the magnetization and electrical resistivity in cubic La(Fe, Si)13 compounds

AU - Palstra, T. T.M.

AU - Mydosh, J. A.

AU - Nieuwenhuys, G. J.

AU - van der Kraan, A. M.

AU - Buschow, K. H.J.

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N2 - The magnetic properties of the cubic NaZn13 type pseudobinary compounds La(TxSi1-x)13 were studied for T = Fe, Co and Ni in the temperature range 4.2-300 K. 57Fe Mössbauer spectroscopy was performed on LaFe11Si2 and 57Fe-doped LaCo11Si2. The compounds with T = Fe or Co are ferromagnetic, while the compound LaNi11Si2 is a Pauli paramagnet. The critical behaviour around the Curie temperature Tc was studied in La(FexSi1-x)13 by measuring the temperature dependences on the zero-field susceptibility and the electrical resistivity. The critical exponent γ in the expression χ ∝ (T - Tc)-γ was found to be close to 1.38 corresponding to an isotropic Heisenberg ferromagnet. The anomalous critical behaviour shown by electrical resistivity can be explained in terms of lattice softening associated with the Invar effect.

AB - The magnetic properties of the cubic NaZn13 type pseudobinary compounds La(TxSi1-x)13 were studied for T = Fe, Co and Ni in the temperature range 4.2-300 K. 57Fe Mössbauer spectroscopy was performed on LaFe11Si2 and 57Fe-doped LaCo11Si2. The compounds with T = Fe or Co are ferromagnetic, while the compound LaNi11Si2 is a Pauli paramagnet. The critical behaviour around the Curie temperature Tc was studied in La(FexSi1-x)13 by measuring the temperature dependences on the zero-field susceptibility and the electrical resistivity. The critical exponent γ in the expression χ ∝ (T - Tc)-γ was found to be close to 1.38 corresponding to an isotropic Heisenberg ferromagnet. The anomalous critical behaviour shown by electrical resistivity can be explained in terms of lattice softening associated with the Invar effect.

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