Adiabatic Magnetooptical and Magnetocaloric Effects of Tb3Ga5O12 at Low Temperature in Strong Magnetic Fields

doi:10.1088/0256-307X/29/2/027502

Chin. Phys. Lett.

2012, Vol. 29

Issue (2): 027502 DOI: 10.1088/0256-307X/29/2/027502

CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES

Adiabatic Magnetooptical and Magnetocaloric Effects of Tb₃Ga₅O₁₂ at Low Temperature in Strong Magnetic Fields

ZHANG Guo-Ying^**, CHEN Hui, YANG Dan, HU Feng, LIU Hai-Shun

Department of Physics, College of Science, China University of Mining and Technology, Xuzhou 221008

Cite this article:

ZHANG Guo-Ying, YANG Dan, LIU Hai-Shun et al 2012 Chin. Phys. Lett. 29 027502

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Abstract In a strong magnetic field, the magnetic susceptibility χ and equivalent magnetic susceptibility λχ of some paramagnetic materials depend sensitively on the applied field H_e. Here λ is the coefficient of the effective field H_m, which relates to the superexchange interaction between the electrons in different magnetic ions. We present the forms of the adiabatic equivalent λχ and the effective field H_m. The adiabatic magneto−caloric and magneto-optical effects of paramagnetic terbium gallate garnet Tb₃Ga₅O₁₂ are calculated at 6 K in strong magnetic fields. Our calculated results are in agreement with the experimental data.

Keywords: 75.30.Sg 78.20.Ls

Received: 29 October 2011 Published: 11 March 2012

PACS:	75.30.Sg	(Magnetocaloric effect, magnetic cooling)
	78.20.Ls	(Magneto-optical effects)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/29/2/027502 OR https://cpl.iphy.ac.cn/Y2012/V29/I2/027502

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	ZHANG Guo-Ying
	YANG Dan
	LIU Hai-Shun
	HU Feng
	CHEN Hui

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