Ferroelectric and magnetic properties of Aurivillius Bim+1Ti3Fem-3O3m+3 thin films

被引：6

作者：

Jia, Tingting ^{[1
]}

Kimura, Hideo ^{[1
]}

Cheng, Zhenxiang ^{[2
]}

Zhao, Hongyang ^{[3
]}

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

[2] Univ Wollongong, Inst Superconducting & Elect Mat, North Wollongong, NSW 2500, Australia

[3] Wuhan Inst Technol, Dept Mat Sci & Engn, Wuhan 430074, Peoples R China

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A | 2015年 / 33卷 / 06期

关键词：

MAGNETOELECTRIC MEASUREMENTS; DATA-STORAGE; POLARIZATION;

D O I：

10.1116/1.4926982

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Aurivillius Bim+1Ti3Fem-3O3m+3 (m = 4, 5, 6) thin films have been deposited by a pulsed laser deposition system. The x-ray diffraction patterns indicate the formation of orthorhombic phase. The remanent polarization (2P(r)) of Bim+1Ti3Fem-3O3m+3 thin films is decreased with the m-number. Positive-up-negative-down measurements indicate the presence of ferroelectric (FE) polarization in as-obtained thin films. Piezoresponse force microscopy investigations confirm the existence of FE domains and the switchable polarization. Weak magnetic moment is detected in the Aurivillius films at room temperature. The present work suggests the possibility of Aurivillius Bim+1Ti3Fem-3O3m+3 (m = 4, 5, 6) materials as potential room-temperature multiferroics. (C) 2015 American Vacuum Society.

引用

页数：6

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