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所属单位：材料科学与技术学院

发表刊物：JOURNAL OF PHYSICS-CONDENSED MATTER

关键字：magnetoelectric effect multiferroic heterostructure charge screening electric modulation of magnetization Verwey phase transition

摘要：Despite intensive investigations into 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 the temperature dependence of its 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 the Verwey phase transition shifting similar to 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 the phase transition.

ISSN号：0953-8984

是否译文：否

发表时间：2018-03-21

合写作者：吉航,李扬

通讯作者：王寅岗