DOI: 10.1063/1.119206. Tunable magnetic regenerator alloys with a giant magnetocaloric effect for magnetic refrigeration from ∼20 to ∼290 K

Tunable magnetic regenerator alloys with a giant magnetocaloric effect for magnetic refrigeration from ∼20 to ∼290 K

10.1063/1.119206

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

A giant magnetocaloric effect (ΔSmag) has been discovered in the Gd5(SixGe1−x)4 pseudobinary alloys, where x⩽0.5. For the temperature range between ∼50 and ∼280 K it exceeds the reversible (with respect to alternating magnetic field) ΔSmag for any known magnetic refrigerant material at the corresponding Curie temperature by a factor of 2–10. The two most striking features of this alloy system are: (1) the first order phase transformation, which brings about the large ΔSmag in Gd5(SixGe1−x)4, is reversible with respect to alternating magnetic field, i.e., the giant magnetocaloric effect can be utilized in an active magnetic regenerator magnetic refrigerator; and (2) the ordering temperature is tunable from ∼30 to ∼276 K by adjusting the Si:Ge ratio without losing the giant magnetic entropy change.

Bibliography

Pecharsky, V. K., & Gschneidner, K. A. (1997). Tunable magnetic regenerator alloys with a giant magnetocaloric effect for magnetic refrigeration from â¼20 to â¼290âK. Applied Physics Letters, 70(24), 3299â3301.

Authors 2

V. K. Pecharsky (first)
K. A. Gschneidner (additional)

References 9 Referenced 695

{'key': '2024020312502750800_r1'}
{'key': '2024020312502750800_r2', 'first-page': '423', 'volume': '42', 'year': '1997', 'journal-title': 'Adv. Cryogen. Eng.'} / Adv. Cryogen. Eng. (1997)
10.1016/0022-3697(67)90253-3 / J. Phys. Chem. Solids (1967)
{'key': '2024020312502750800_r4', 'first-page': '475', 'volume': '42', 'year': '1997', 'journal-title': 'Adv. Cryogen. Eng.'} / Adv. Cryogen. Eng. (1997)
10.1063/1.329633 / J. Appl. Phys. (1981)
10.1016/0304-8853(86)90075-2 / J. Magn. Magn. Mater. (1986)
10.1016/0011-2275(92)90352-B / Cryogenics (1992)
10.1063/1.360955 / J. Appl. Phys. (1996)
10.1063/1.362133 / J. Appl. Phys. (1996)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:29 a.m.)
Deposited	1 year, 7 months ago (Feb. 3, 2024, 7:50 a.m.)
Indexed	1 week, 4 days ago (Aug. 23, 2025, 9:45 p.m.)
Issued	28 years, 2 months ago (June 16, 1997)
Published	28 years, 2 months ago (June 16, 1997)
Published Print	28 years, 2 months ago (June 16, 1997)

Funders 0

None

BibTeX

@article{Pecharsky_1997, title={Tunable magnetic regenerator alloys with a giant magnetocaloric effect for magnetic refrigeration from ∼20 to ∼290 K}, volume={70}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.119206}, DOI={10.1063/1.119206}, number={24}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Pecharsky, V. K. and Gschneidner, K. A.}, year={1997}, month=jun, pages={3299–3301} }

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