In this paper, magnetomechanic effect, magneto-caloric effect, magnetoresistance effect and magnetic-optical effect of magnetic material and its application are discussed by thermodynamic functions.

• 摘要本文通过热力学函数半定量地讨论了磁性材料的磁力效应、磁热效应，并定性地介绍了磁电阻效应和磁光效应及其应用。