Magnetic properties and magnetocaloric effects in GdCo9Si2 compound with multiple magnetic phase transitions

Z. G. Zheng; X. C. Zhong; J. L. Zhang; Z. W. Liu; V. Franco; D. C. Zeng

doi:10.1063/1.4799973

Author(s)

Z. G. Zheng
X. C. Zhong
J. L. Zhang
Z. W. Liu
V. Franco
And 1 others

D. C. Zeng

Detail(s)

Original language	English
Article number	ARTN 17A938
Journal / Publication	Journal of Applied Physics
Volume	113
Issue number	17
Online published	10 Apr 2013
Publication status	Published - 7 May 2013

Conference

Title	12th Joint MMM-Intermag Conference
Place	Israel
City	Chicago
Period	14 - 18 January 2013

Link(s)

DOI	DOI https://doi.org/10.1063/1.4799973 Final Published version
	Check@CityULib
Attachment(s)	Documents 13117432.pdf Final Published version, 1.34 MB, PDF Publisher's Copyright Statement COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Z. G. Zheng, X. C. Zhong, J. L. Zhang, Z. W. Liu, V. Franco, and D. C. Zeng , "Magnetic properties and magnetocaloric effects in GdCo9Si2 compound with multiple magnetic phase transitions", Journal of Applied Physics 113, 17A938 (2013) and may be found at https://doi.org/10.1063/1.4799973.
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84877786831&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(3deffdbf-035a-48ed-a5de-5f20066606ec).html

Abstract

The structure and magnetic properties of polycrystalline GdCo₉Si₂ compound have been investigated. It has a BaCd₁₁ structure and undergoes two magnetic phase transitions: an antiferromagnetic to ferrimagnetic transition occurring at ∼93 K, and a ferrimagnetic to paramagnetic transition at 420 K, which results in a positive and a negative magnetic entropy change, respectively. The two peak values of magnetic entropy change are -0.6 and 1.1 J.kg^-1.K^-1 for ΔH = 5 T. Furthermore, there exists a metal-semiconductor transition temperature (T_P), below which the resistance increases with increasing temperature, while the semiconductor characteristic is observed above T_P. The magnetic domain structures are characterized by stripe and grid structures 1 μm wide. Although the MCE is small for applications, its study is useful to clearly understand the nature of multiple magnetic phase transitions in the GdCo₉Si₂ compound.

Research Area(s)

Citation Format(s)

[ RIS ] [ BibTeX ]

Magnetic properties and magnetocaloric effects in GdCo₉Si₂ compound with multiple magnetic phase transitions. / Zheng, Z. G.; Zhong, X. C.; Zhang, J. L. et al.
In: Journal of Applied Physics, Vol. 113, No. 17, ARTN 17A938, 07.05.2013.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Zheng, ZG, Zhong, XC, Zhang, JL, Liu, ZW, Franco, V & Zeng, DC 2013, 'Magnetic properties and magnetocaloric effects in GdCo₉Si₂ compound with multiple magnetic phase transitions', Journal of Applied Physics, vol. 113, no. 17, ARTN 17A938. https://doi.org/10.1063/1.4799973

Zheng, Z. G., Zhong, X. C., Zhang, J. L., Liu, Z. W., Franco, V., & Zeng, D. C. (2013). Magnetic properties and magnetocaloric effects in GdCo₉Si₂ compound with multiple magnetic phase transitions. Journal of Applied Physics, 113(17), Article ARTN 17A938. https://doi.org/10.1063/1.4799973

Zheng ZG, Zhong XC, Zhang JL, Liu ZW, Franco V, Zeng DC. Magnetic properties and magnetocaloric effects in GdCo₉Si₂ compound with multiple magnetic phase transitions. Journal of Applied Physics. 2013 May 7;113(17):ARTN 17A938. Epub 2013 Apr 10. doi: 10.1063/1.4799973

Zheng, Z. G. ; Zhong, X. C. ; Zhang, J. L. et al. / Magnetic properties and magnetocaloric effects in GdCo₉Si₂ compound with multiple magnetic phase transitions. In: Journal of Applied Physics. 2013 ; Vol. 113, No. 17.

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