Electrostatic switch of magnetic core-shell in 0-3 type LSMO/PZT composite film

• 作者: Bo Chen Chuan-Fu Huang Yong-Mei Zhang Zi-Run Li
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2020,（9）
• 所属期刊栏目: CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES
• 页码范围: 588-594
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/abab73

摘要

By dispersing La1-xSrxMnO3 (LSMO) granule into PbZrxTi1-xO3 (PZT) matrix,the 0-3 type LSMO/PZT composite film is synthesized through chemical solution method.The asymmetry of the top and bottom electrodes introduces novel electrostatic screening on LSMO/PZT interface.As electric polarization is switched between upward and downward orientations,the evolution of exchange bias,diode transport,and magnetoresistance is observed.The result implies the electrostatic switch of magnetic core-shell in the present film.In detail,as the spontaneous polarization is upward or downward in the PZT matrix,the ferromagnetic/antiferromagnetic or ferromagnetic/ferromagnetic core-shell structure is formed in LSMO granule,respectively.This work would develop a novel device for spintronics and metamaterial.