Magnetocaloric effect and refrigeration cooling power in amorphous Gd7Ru3 alloys

Pramod Kumar; Rachana Kumar

doi:10.1063/1.4926810

Magnetocaloric effect and refrigeration cooling power in amorphous Gd₇Ru₃ alloys

Pramod Kumar, Rachana Kumar

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Abstract

In this paper, we report the magnetic, heat capacity and magneto-caloric effect (MCE) of amorphous Gd₇Ru₃ compound. Both, temperature dependent magnetization and heat capacity data reveals that two transitions at 58 K and 34 K. MCE has been calculated in terms of isothermal entropy change (ΔS_M) and adiabatic temperature change (ΔT_ad) using the heat capacity data in different fields. The maximum values of ΔS_M and ΔT_ad are 21 Jmol^-1K^-1 and 5 K respectively, for field change of 50 kOe whereas relative cooling power (RCP) is ∼735 J/kg for the same field change.

Original language	English
Article number	077125
Journal	AIP Advances
Volume	5
Issue number	7
DOIs	https://doi.org/10.1063/1.4926810
State	Published - 1 Jul 2015
Externally published	Yes

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abstract = "In this paper, we report the magnetic, heat capacity and magneto-caloric effect (MCE) of amorphous Gd7Ru3 compound. Both, temperature dependent magnetization and heat capacity data reveals that two transitions at 58 K and 34 K. MCE has been calculated in terms of isothermal entropy change (ΔSM) and adiabatic temperature change (ΔTad) using the heat capacity data in different fields. The maximum values of ΔSM and ΔTad are 21 Jmol-1K-1 and 5 K respectively, for field change of 50 kOe whereas relative cooling power (RCP) is ∼735 J/kg for the same field change.",

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N2 - In this paper, we report the magnetic, heat capacity and magneto-caloric effect (MCE) of amorphous Gd7Ru3 compound. Both, temperature dependent magnetization and heat capacity data reveals that two transitions at 58 K and 34 K. MCE has been calculated in terms of isothermal entropy change (ΔSM) and adiabatic temperature change (ΔTad) using the heat capacity data in different fields. The maximum values of ΔSM and ΔTad are 21 Jmol-1K-1 and 5 K respectively, for field change of 50 kOe whereas relative cooling power (RCP) is ∼735 J/kg for the same field change.

AB - In this paper, we report the magnetic, heat capacity and magneto-caloric effect (MCE) of amorphous Gd7Ru3 compound. Both, temperature dependent magnetization and heat capacity data reveals that two transitions at 58 K and 34 K. MCE has been calculated in terms of isothermal entropy change (ΔSM) and adiabatic temperature change (ΔTad) using the heat capacity data in different fields. The maximum values of ΔSM and ΔTad are 21 Jmol-1K-1 and 5 K respectively, for field change of 50 kOe whereas relative cooling power (RCP) is ∼735 J/kg for the same field change.

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Magnetocaloric effect and refrigeration cooling power in amorphous Gd₇Ru₃ alloys

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