Despite intensive investigations on the Verwey phase transition of Fe3O4 over half a century, the mechanism of this phase transition remains controversial and needs further research. In this work, we build the Fe3O4/SrTiO3 multiferroic heterostructure and investigate its temperature dependence of saturation magnetization under various electric fields. It is found that the charge-screening effect not only influences the magnetization but also induces the temperature of Verwey phase transition shifting ~13 K. It suggests that the Verwey phase transition has certain correlations with the electron distribution and the change of the number of minority spin electrons in the trimerons plays a dominant role in the temperature shift of phase transition.
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