Abstract
The low-temperature specific heat C p of La(Fe0.873Co0.007Al0.12)13 compound has been measured in two states: (i) antiferromagnetic (AFM) with a Néel temperature of T N = 192 K and (ii) ferromagnetic (FM). The FM order appears at T = 4.2 K in a sample exposed to an external magnetic field with induction B C ≥ 2.5 T and is retained for a long time in a zero field at temperatures up to T*C = 23 K. The coefficient γFM in the low-temperature specific heat C = γT + βT 3 in the FM state differs quite insignificantly from that (γAFM) in the AFM state. Contributions to the low-temperature specific heat, which are related to a change in the elastic and magnetoelastic energy caused by magnetostrictive deformations, are considered.
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References
T. T. M. Palstra, G. J. Nieuwenhuys, J. A. Mydosh, and K. H. J. Buschow, Phys. Rev. B 31, 4622 (1985).
Ye. V. Shcherbakova, A. V. Korolyov, and S. M. Podgornykh, J. Magn. Magn. Mater. 237, 147 (2001).
A. S. Ermolenko, E. V. Shcherbakova, A. V. Andreev, and N. V. Baranov, Fiz. Met. Metalloved. 65, 749 (1988).
E. P. Wohlfarth and P. Rhodes, Philos. Mag. 7, 1817 (1962).
S. M. Podgornykh and Ye. V. Shcherbakova, Phys. Rev. B 73, 184421 (2006).
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Original Russian Text © S.M. Podgornykh, V.A. Kazantsev, V.I. Myakon’kikh, E.V. Shcherbakova, A.A. Ermakov, 2007, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2007, Vol. 132, No. 1, pp. 73–76.
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Podgornykh, S.M., Kazantsev, V.A., Myakon’kikh, V.I. et al. Specific heat of La(Fe0.873Co0.007Al0.12)13 compound in antiferromagnetic and ferromagnetic states. J. Exp. Theor. Phys. 105, 62–64 (2007). https://doi.org/10.1134/S106377610707014X
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DOI: https://doi.org/10.1134/S106377610707014X