Magnetic properties and enhanced magnetic refrigeration in (Mn 1-xFex)5Ge3 compounds

Q. Zhang; J. Du; Y. B. Li; N. K. Sun; W. B. Cui; D. Li; Z. D. Zhang

doi:10.1063/1.2748723

Magnetic properties and enhanced magnetic refrigeration in (Mn _1-xFe_x)₅Ge₃ compounds

Q. Zhang
, J. Du
, Y. B. Li
, N. K. Sun
, W. B. Cui
, D. Li
, Z. D. Zhang

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

Magnetic and magnetocaloric effects of (Mn1-x Fex) 5 Ge3 compounds are studied systematically. The maximum of magnetic entropy changes of 8.01 J/kg K under an external field change of 5 T is obtained for (Mn0.9 Fe0.1) 5 Ge3, which is the largest value in Mn5 Ge3 -based solid solutions. Moreover, the Fe substitution increases the refrigeration capacity (RC) value greatly. The largest RC value of 237 J/kg in (Mn0.8 Fe0.2) 5 Ge3 even compares favorably to that of many well-known magnetic refrigeration materials. Thus the Fe-containing (Mn1-x Fex) 5 Ge3 compounds are much-improved magnetic refrigerants for the application of room-temperature magnetic refrigeration. The increase of the RC value is probably resulted from the formation of magnetic nanostructure.

Original language	English
Article number	123911
Journal	Journal of Applied Physics
Volume	101
Issue number	12
DOIs	https://doi.org/10.1063/1.2748723
State	Published - 2007
Externally published	Yes

Funding

This work has been supported by the National Natural Science Foundation of China under Grant No. 50332020.

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10.1063/1.2748723

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title = "Magnetic properties and enhanced magnetic refrigeration in (Mn 1-xFex)5Ge3 compounds",

abstract = "Magnetic and magnetocaloric effects of (Mn1-x Fex) 5 Ge3 compounds are studied systematically. The maximum of magnetic entropy changes of 8.01 J/kg K under an external field change of 5 T is obtained for (Mn0.9 Fe0.1) 5 Ge3, which is the largest value in Mn5 Ge3 -based solid solutions. Moreover, the Fe substitution increases the refrigeration capacity (RC) value greatly. The largest RC value of 237 J/kg in (Mn0.8 Fe0.2) 5 Ge3 even compares favorably to that of many well-known magnetic refrigeration materials. Thus the Fe-containing (Mn1-x Fex) 5 Ge3 compounds are much-improved magnetic refrigerants for the application of room-temperature magnetic refrigeration. The increase of the RC value is probably resulted from the formation of magnetic nanostructure.",

author = "Q. Zhang and J. Du and Li, \{Y. B.\} and Sun, \{N. K.\} and Cui, \{W. B.\} and D. Li and Zhang, \{Z. D.\}",

year = "2007",

doi = "10.1063/1.2748723",

language = "English",

volume = "101",

journal = "Journal of Applied Physics",

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TY - JOUR

T1 - Magnetic properties and enhanced magnetic refrigeration in (Mn 1-xFex)5Ge3 compounds

AU - Zhang, Q.

AU - Du, J.

AU - Li, Y. B.

AU - Sun, N. K.

AU - Cui, W. B.

AU - Li, D.

AU - Zhang, Z. D.

PY - 2007

Y1 - 2007

N2 - Magnetic and magnetocaloric effects of (Mn1-x Fex) 5 Ge3 compounds are studied systematically. The maximum of magnetic entropy changes of 8.01 J/kg K under an external field change of 5 T is obtained for (Mn0.9 Fe0.1) 5 Ge3, which is the largest value in Mn5 Ge3 -based solid solutions. Moreover, the Fe substitution increases the refrigeration capacity (RC) value greatly. The largest RC value of 237 J/kg in (Mn0.8 Fe0.2) 5 Ge3 even compares favorably to that of many well-known magnetic refrigeration materials. Thus the Fe-containing (Mn1-x Fex) 5 Ge3 compounds are much-improved magnetic refrigerants for the application of room-temperature magnetic refrigeration. The increase of the RC value is probably resulted from the formation of magnetic nanostructure.

AB - Magnetic and magnetocaloric effects of (Mn1-x Fex) 5 Ge3 compounds are studied systematically. The maximum of magnetic entropy changes of 8.01 J/kg K under an external field change of 5 T is obtained for (Mn0.9 Fe0.1) 5 Ge3, which is the largest value in Mn5 Ge3 -based solid solutions. Moreover, the Fe substitution increases the refrigeration capacity (RC) value greatly. The largest RC value of 237 J/kg in (Mn0.8 Fe0.2) 5 Ge3 even compares favorably to that of many well-known magnetic refrigeration materials. Thus the Fe-containing (Mn1-x Fex) 5 Ge3 compounds are much-improved magnetic refrigerants for the application of room-temperature magnetic refrigeration. The increase of the RC value is probably resulted from the formation of magnetic nanostructure.

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U2 - 10.1063/1.2748723

DO - 10.1063/1.2748723

M3 - Article

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 12

M1 - 123911

ER -

Magnetic properties and enhanced magnetic refrigeration in (Mn _1-xFe_x)₅Ge₃ compounds

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