Abstract：The roles of the exchange interaction between different magnetic ions in the gadolinium gallium garnet Gd3Ga5O12 are systematically investigated. The effective field based on the exchange interaction is expressed as functions of the temperature T and applied field He. Furthermore, the effects of T and He on the magnetic moment and the entropy of Gd3Ga5O12 are studied in the ranges of 0<He<9 T and 3<T<40 K. The computational results are consistent with the experimental data. Our study reveals that the applied field and temperature have important influences on the exchange interaction of Gd3Ga5O12 at low temperature.
. [J]. 中国物理快报, 2014, 31(05): 57501-057501.
HU Feng, ZHANG Guo-Ying, HUANG Yi-Jia, XIA Wang-Suo. Effective Field Based on the Exchange Interaction in Gd3Ga5O12 under Low and Moderate Magnetic Field at Low Temperature. Chin. Phys. Lett., 2014, 31(05): 57501-057501.
2014, Vol. 31 
