Effect of substitution of vanadium on the structure and electrical properties of Bi3.25La0.75Ti3O12 thin films

被引：10

作者：

Meng, XJ ^{[1
]}

Ma, JH ^{[1
]}

Sun, JL ^{[1
]}

Lin, T ^{[1
]}

Yu, J ^{[1
]}

Wang, GS ^{[1
]}

Chu, JH ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2004年 / 78卷 / 07期

关键词：

D O I：

10.1007/s00339-003-2172-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ferroelectric and dielectric properties of Bi4-xLaxTi3O12 (BLT) and Bi4-xLaxTi2.97V0.03O12 (BLTV) thin films deposited on (111)Pt/Ti/SiO2/Si substrates using a chemical solution method were investigated. The BLTV thin films showed a larger remanent polarization (9.6 muC/cm(2)) than the BLT thin films (6.5 muC/cm(2)), while the coercive field for both thin films was nearly the same. The capacitance of the films as a function of a small ac driving field was measured, and the data were processed using Rayleigh's law. The results show that the Rayleigh constant of the BLT films was smaller than that of the BLTV films, indicating that the defect concentration was lower in the latter case. The superior ferroelectricity of the BLTV films was attributed to a decrease of both the (001) orientation and the defect concentration.

引用

页码：1089 / 1091

页数：3

共 8 条

[1] Reversible and irreversible processes in donor-doped Pb(Zr,Ti)O3 [J].

Bolten, D ;

Böttger, U ;

Schneller, T ;

Grossmann, M ;

Lohse, O ;

Waser, R .

APPLIED PHYSICS LETTERS, 2000, 77 (23) :3830-3832

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

BOSER, O .

JOURNAL OF APPLIED PHYSICS, 1987, 62 (04) :1344-1348

[3] Defect control for large remanent polarization in bismuth titanate ferroelectrics doping effect of higher-valent cations [J].

Noguchi, YJ ;

Miwa, I ;

Goshima, Y ;

Miyayama, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2000, 39 (12B) :L1259-L1262

[4] Lanthanum-substituted bismuth titanate for use in non-volatile memories [J].

Park, BH ;

Kang, BS ;

Bu, SD ;

Noh, TW ;

Lee, J ;

Jo, W .

NATURE, 1999, 401 (6754) :682-684

[5] STRUCTURE REFINEMENT OF COMMENSURATELY MODULATED BISMUTH TITANATE, BI4TI3O12 [J].

RAE, AD ;

THOMPSON, JG ;

WITHERS, RL ;

WILLIS, AC .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1990, 46 :474-487

[6] Structural and optical properties of Bi3.25La0.75Ti3O12 ferroelectric thin films prepared by chemical solution methods [J].

Wang, GS ;

Meng, XJ ;

Lai, ZQ ;

Yu, J ;

Sun, JL ;

Guo, SL ;

Chu, JH .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2003, 76 (01) :83-86

[7] Effect of cosubstitution of La and V in Bi4Ti3O12 thin films on the low-temperature deposition [J].

Watanabe, T ;

Funakubo, H ;

Osada, M ;

Noguchi, Y ;

Miyayama, M .

APPLIED PHYSICS LETTERS, 2002, 80 (01) :100-102

[8]

WATANABE T, IN PRESS J APPL PHYS

← 1 →