Ferroelectric and ferromagnetic properties of SrTi0.9Fe0.1O3-δ thin films

被引：10
|
作者：
Wang, Y. G. [1 ]
Tang, X. G. [1 ]
Liu, Q. X. [1 ]
Jiang, Y. P. [1 ]
Feng, Z. Y. [1 ]
机构：
[1] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou Higher Educ Mega Ctr, Guangzhou 510006, Guangdong, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2015年 / 202卷
基金：
中国国家自然科学基金;
关键词：
SrTiO3; films; Spin coating; Ferroelectric properties; Ferromagnetism; ELECTRICAL-PROPERTIES; SRTIO3;
D O I：
10.1016/j.ssc.2014.11.001
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The SrTi0.9Fe0.1O3-delta thin film grown on the LaNiO3 coated Si(100) substrates was prepared by a sol-gel process. The structure, micrograph, chemical states, electrical and magnetic properties of the thin film were investigated by using X-ray diffractometor (XRD), atomic force microscopy (ADM). X-ray photoelectron spectroscopy (XPS), ferroelectric test system and vibrating sample magnetometer (VSM), respectively. The results showed that the ferroelectric properties with the saturated polarization (2P(s)), remanent polarization (2P(r)) and coercive field (2E(c)) of 12.3 mu C/cm(2), 1.58 mu C/cm(2) and 33 kV/cm, respectively, at applied field of 200 kV/cm. The average remnant magnetization (M-r) and saturated magnetization (M-s) of the thin film were 3.74 x 10(-2) and 922 x 10(-2) emu/cm(3), respectively. Both the ferroelectric and ferromagnetic properties could be explained by the defect induced and the Fe ion substitution. Such multiferroic thin film was appropriate to be used in the field of multiferroic devices. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：24 / 27
页数：4
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