Effect of Fe-doping concentration on microstructure, electrical, and magnetic properties of Pb(Zr0.5Ti0.5)O3 thin films prepared by chemical solution deposition

被引：29

作者：

Bai, W. ^{[1
]}

Meng, X. J. ^{[1
]}

Lin, T. ^{[1
]}

Tian, L. ^{[1
]}

Jing, C. B. ^{[1
,2
]}

Liu, W. J. ^{[3
]}

Ma, J. H. ^{[1
]}

Sun, J. L. ^{[1
]}

Chu, J. H. ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, Shanghai 200083, Peoples R China

[2] Qingdao Univ Sci & Technol, Coll Mat Sci & Technol, Qingdao 266042, Peoples R China

[3] E China Normal Univ, Key Lab Polar Mat & Devices, Minist Educ, Shanghai 200062, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 106卷 / 12期

关键词：

dielectric hysteresis; dielectric polarisation; doping profiles; electrical faults; exchange interactions (electron); ferroelectric coercive field; ferroelectric thin films; ferromagnetic materials; iron; lanthanum compounds; lead compounds; liquid phase deposition; magnetic polarons; magnetic thin films; multiferroics; silicon; space charge; surface roughness; CHARGE-LIMITED CURRENTS; TEMPERATURE; EXCHANGE;

D O I：

10.1063/1.3273384

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The highly (l00) oriented Pb(Zr0.5Ti0.5)O-3 thin films with different Fe3+ doping concentrations were fabricated on LaNiO3-coated silicon substrates by chemical solution deposition. And the microstructure, ferroelectric, leakage, and magnetic properties were investigated. The results indicate that incorporation of Fe3+ into PZT thin films can promote the degree of the lattice distortion and greatly improve the surface roughness. In comparison with the pure PZT sample, the ferroelectric hysteresis loops of Fe-doped PZT samples demonstrate larger and larger polarizations and coercive fields with the increase in Fe3+ doping amount. Moreover, leakage mechanism of present films evolves from the space charge limited conduction to the "modified" space charge limited conduction, and then returns to the space charge limited conduction with increasing Fe3+ doping concentration. The occurrence of exchange bias in these Fe-doped PZT samples implies that the magnetic exchange interaction can be explained by the bound magnetic polaron model.

引用

页数：6

共 33 条

[1] STATISTICAL-THEORY OF HYSTERESIS IN FERROELECTRIC MATERIALS [J].