Large magnetic entropy change above 300 K in a La0.7Ca0.2Sr0.1MnO3 single crystal

MH Phan; H-X Peng; S-C Yu; NH Hur

doi:10.1016/j.mmm.2004.11.033

Large magnetic entropy change above 300 K in a La_0.7Ca_0.2Sr_0.1MnO₃ single crystal

MH Phan, H-X Peng, S-C Yu, NH Hur

Department of Aerospace Engineering

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Abstract

A detailed study of the magneto-caloric effect in a single crystal of La0.7Ca0.2Sr0.1MnO3 has been made. The magnetic entropy change (Î”SM) reaches a maximum value of 7.45 J/kg K at 308 K for a 50 kOe field change, which is ideal for room-temperature magnetic refrigeration applications. Due to the absence of grains in the manganite single crystal, the Î”SM distribution of this sample is much more uniform than that of gadolinium and polycrystalline manganites, which is desirable for an Ericson-cycle magnetic refrigerator. The single crystal has the large magnetic entropy change induced by low magnetic field change, which is beneficial for the household application of active magnetic refrigerant (AMR) materials. These results indicate that the present single crystal is an excellent candidate as a working material for room-temperature AMR.

Translated title of the contribution	Large magnetic entropy change above 300 K in a La_0.7Ca_0.2Sr_0.1MnO₃ single crystal
Original language	English
Pages (from-to)	665 - 668
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	290-291(1)
DOIs	https://doi.org/10.1016/j.mmm.2004.11.033
Publication status	Published - Apr 2005

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@article{4c3d3c2bfa9f4e0393136f4db5a539a3,

title = "Large magnetic entropy change above 300 K in a La0.7Ca0.2Sr0.1MnO3 single crystal",

abstract = "A detailed study of the magneto-caloric effect in a single crystal of La0.7Ca0.2Sr0.1MnO3 has been made. The magnetic entropy change ({\^I}”SM) reaches a maximum value of 7.45 J/kg K at 308 K for a 50 kOe field change, which is ideal for room-temperature magnetic refrigeration applications. Due to the absence of grains in the manganite single crystal, the {\^I}”SM distribution of this sample is much more uniform than that of gadolinium and polycrystalline manganites, which is desirable for an Ericson-cycle magnetic refrigerator. The single crystal has the large magnetic entropy change induced by low magnetic field change, which is beneficial for the household application of active magnetic refrigerant (AMR) materials. These results indicate that the present single crystal is an excellent candidate as a working material for room-temperature AMR.",

author = "MH Phan and H-X Peng and S-C Yu and NH Hur",

year = "2005",

month = apr,

doi = "10.1016/j.mmm.2004.11.033",

language = "English",

volume = "290-291(1)",

pages = "665 -- 668",

journal = "Journal of Magnetism and Magnetic Materials",

publisher = "North-Holland Publishing Company",

}

TY - JOUR

T1 - Large magnetic entropy change above 300 K in a La0.7Ca0.2Sr0.1MnO3 single crystal

AU - Phan, MH

AU - Peng, H-X

AU - Yu, S-C

AU - Hur, NH

PY - 2005/4

Y1 - 2005/4

N2 - A detailed study of the magneto-caloric effect in a single crystal of La0.7Ca0.2Sr0.1MnO3 has been made. The magnetic entropy change (Î”SM) reaches a maximum value of 7.45 J/kg K at 308 K for a 50 kOe field change, which is ideal for room-temperature magnetic refrigeration applications. Due to the absence of grains in the manganite single crystal, the Î”SM distribution of this sample is much more uniform than that of gadolinium and polycrystalline manganites, which is desirable for an Ericson-cycle magnetic refrigerator. The single crystal has the large magnetic entropy change induced by low magnetic field change, which is beneficial for the household application of active magnetic refrigerant (AMR) materials. These results indicate that the present single crystal is an excellent candidate as a working material for room-temperature AMR.

AB - A detailed study of the magneto-caloric effect in a single crystal of La0.7Ca0.2Sr0.1MnO3 has been made. The magnetic entropy change (Î”SM) reaches a maximum value of 7.45 J/kg K at 308 K for a 50 kOe field change, which is ideal for room-temperature magnetic refrigeration applications. Due to the absence of grains in the manganite single crystal, the Î”SM distribution of this sample is much more uniform than that of gadolinium and polycrystalline manganites, which is desirable for an Ericson-cycle magnetic refrigerator. The single crystal has the large magnetic entropy change induced by low magnetic field change, which is beneficial for the household application of active magnetic refrigerant (AMR) materials. These results indicate that the present single crystal is an excellent candidate as a working material for room-temperature AMR.

U2 - 10.1016/j.mmm.2004.11.033

DO - 10.1016/j.mmm.2004.11.033

M3 - Article (Academic Journal)

VL - 290-291(1)

SP - 665

EP - 668

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials