Effect of Crystal Size on the Magnetic Entropy Change in CoCr2O4

Shang Dong Li; Zhi Gao Huang; Guo Xia Zhao; Wen Qin Zou; You Liao Zheng; You Wei Du

doi:10.4028/www.scientific.net/SSP.121-123.889

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HomeSolid State PhenomenaSolid State Phenomena Vols. 121-123Effect of Crystal Size on the Magnetic Entropy...

Effect of Crystal Size on the Magnetic Entropy Change in CoCr₂O₄

Abstract:

The size effect of magnetocaloric effect (MCE) in CoCr2O4 has been investigated by comparing two samples with different crystal sizes. One is bulk CoCr2O4 sample (referred as A), and the other is a nanocrystalline CoCr2O4 sample (referred as B). It has been found that crystal size dramatically affects the magnetic properties and MCE for CoCr2O4, and that the nanocrystalline material is more favorable for application than the bulk material. The above results are explained in terms of the effect of small size and its distribution for sample B on the intrinsic magnetic properties and magnetic entropy change.

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Solid State Phenomena (Volumes 121-123)

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889-892

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https://doi.org/10.4028/www.scientific.net/SSP.121-123.889

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Online since:

March 2007

Authors:

Shang Dong Li, Zhi Gao Huang, Guo Xia Zhao, Wen Qin Zou, You Liao Zheng, You Wei Du

Keywords:

Magnetocaloric Effect, Nanocrystallite, Size Effect

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