The magnetocrystalline anisotropy of Er3Ga5O12 under high magnetic field
强磁场下Er2Ga5O12的磁晶各向异性

Magnetization is calculated at 4\^2 K under a high magnetic field using quantum theory when the magnetic field is applied parallel to 001],100],110] and 111] directions. A strong anisotropy of magnetization is observed. At low temperature, the magnetization is a linear function of the magnetic field applied when the field is weak.