Structural, magnetic and magnetocaloric properties of La0.8Gd0.2Fe11.4Si1.6

Pramod Kumar; Niraj K. Singh; K. G. Suresh; A. K. Nigam

doi:10.1016/j.physb.2007.10.289

Structural, magnetic and magnetocaloric properties of La_0.8Gd_0.2Fe_11.4Si_1.6

Pramod Kumar, Niraj K. Singh, K. G. Suresh, A. K. Nigam

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11 Scopus citations

Abstract

We report the correlation between magnetism and magnetocaloric effect (MCE) in La_0.8Gd_0.2Fe_11.4Si_1.6. The temperature variation of magnetization shows that the magnetic transition is of second-order nature. This observation is also supported by the thermodynamic analysis using the Landau theory of magnetic phase transitions. The MCE has been measured in terms of the isothermal magnetic entropy change (ΔS_M). The maximum value of ΔS_M is found to be 7.9 J/kg K for a field change of 50 kOe. A comparative study of the magnetic and magnetocaloric properties of this compound with those of LaFe_11.4Si_1.6 is presented.

Original language	English
Pages (from-to)	1015-1016
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.289
State	Published - 1 Apr 2008
Externally published	Yes

Keywords

Ferromagnetic
Magnetocaloric effect
Phase transition

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10.1016/j.physb.2007.10.289

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title = "Structural, magnetic and magnetocaloric properties of La0.8Gd0.2Fe11.4Si1.6",

abstract = "We report the correlation between magnetism and magnetocaloric effect (MCE) in La0.8Gd0.2Fe11.4Si1.6. The temperature variation of magnetization shows that the magnetic transition is of second-order nature. This observation is also supported by the thermodynamic analysis using the Landau theory of magnetic phase transitions. The MCE has been measured in terms of the isothermal magnetic entropy change (ΔSM). The maximum value of ΔSM is found to be 7.9 J/kg K for a field change of 50 kOe. A comparative study of the magnetic and magnetocaloric properties of this compound with those of LaFe11.4Si1.6 is presented.",

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T1 - Structural, magnetic and magnetocaloric properties of La0.8Gd0.2Fe11.4Si1.6

AU - Kumar, Pramod

AU - Singh, Niraj K.

AU - Suresh, K. G.

AU - Nigam, A. K.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - We report the correlation between magnetism and magnetocaloric effect (MCE) in La0.8Gd0.2Fe11.4Si1.6. The temperature variation of magnetization shows that the magnetic transition is of second-order nature. This observation is also supported by the thermodynamic analysis using the Landau theory of magnetic phase transitions. The MCE has been measured in terms of the isothermal magnetic entropy change (ΔSM). The maximum value of ΔSM is found to be 7.9 J/kg K for a field change of 50 kOe. A comparative study of the magnetic and magnetocaloric properties of this compound with those of LaFe11.4Si1.6 is presented.

AB - We report the correlation between magnetism and magnetocaloric effect (MCE) in La0.8Gd0.2Fe11.4Si1.6. The temperature variation of magnetization shows that the magnetic transition is of second-order nature. This observation is also supported by the thermodynamic analysis using the Landau theory of magnetic phase transitions. The MCE has been measured in terms of the isothermal magnetic entropy change (ΔSM). The maximum value of ΔSM is found to be 7.9 J/kg K for a field change of 50 kOe. A comparative study of the magnetic and magnetocaloric properties of this compound with those of LaFe11.4Si1.6 is presented.

KW - Ferromagnetic

KW - Magnetocaloric effect

KW - Phase transition

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Structural, magnetic and magnetocaloric properties of La_0.8Gd_0.2Fe_11.4Si_1.6

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Keywords

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