Thickness Effect on (La0.26Bi0.74)2Ti4O11 Thin-Film Composition and Electrical Properties

被引：0

作者：

Guo, Hui-Zhen ^{[1
]}

Jiang, An-Quan ^{[1
]}

机构：

[1] Fudan Univ, Sch Microelect, State Key Lab ASIC & Syst, Shanghai 200433, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2018年 / 35卷 / 02期

基金：

中国国家自然科学基金;

关键词：

CHEMICAL-VAPOR-DEPOSITION; BISMUTH TITANATE; DIELECTRIC-PROPERTIES; LOW-TEMPERATURE; BI2TI4O11; BI4TI3O12; TIO2; CERAMICS; GROWTH;

D O I：

10.1088/0256-307X/35/2/026801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Highly oriented (001) (La0.26Bi0.74)(2)Ti4O11 thin films are deposited on (100) SrTiO3 substrates using the pulsed laser deposition technique. The grains form a texture of bar-like arrays along SrTiO3 < 110 > directions for the film thickness above 350 nm, in contrast to spherical grains for the reduced film thickness below 220 nm. Xray diffraction patterns show that the highly ordered bar-like grains are the ensemble of two lattice-matched monoclinic (La, Bi)(4)Ti3O12 and TiO2 components above a critical film thickness. Otherwise, the phase decomposes into the random mixture of Bi2Ti2O7 and Bi4Ti3O4 spherical grains in thinner films. The critical thickness can increase up to 440nm as the films are deposited on LaNiO3-buffered SrTiO3 substrates. The electrical measurements show the dielectric enhancement of the multi-components, and comprehensive charge injection into interfacial traps between (La, Bi)(4)Ti3O12 and TiO2 components occurs under the application of a threshold voltage for the realization of high-charge storage.

引用

页数：5

共 35 条

[1] Electric-field penetration into metals: Consequences for high-dielectric-constant capacitors [J].

Black, CT ;

Welser, JJ .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 1999, 46 (04) :776-780

[2] Impact of nanosizing on lithiated rutile TiO2 [J].

Borghols, Wouter J. H. ;

Wagemaker, Marnix ;

Lafont, Ugo ;

Kelder, Erik M. ;

Mulder, Fokko M. .

CHEMISTRY OF MATERIALS, 2008, 20 (09) :2949-2955

[3] Formation of Bi4Ti3O12 One-Dimensional Structures by Solid-State Reactive Diffusion. From Core-Shell Templates to Nanorods and Nanotubes [J].

Buscaglia, Maria Teresa ;

Sennour, Mohamed ;

Buscaglia, Vincenzo ;

Bottino, Carlo ;

Kalyani, Vishwanath ;

Nanni, Paolo .

CRYSTAL GROWTH & DESIGN, 2011, 11 (04) :1394-1401

[4] Electrical properties and crystal structure of (Ba,Sr)TiO3 films prepared at low temperatures on a LaNiO3 electrode by radio-frequency magnetron sputtering [J].

Chu, CM ;

Lin, P .

APPLIED PHYSICS LETTERS, 1997, 70 (02) :249-251

[5] Dislocation avalanches, strain bursts, and the problem of plastic forming at the micrometer scale [J].

Csikor, Ferenc F. ;

Motz, Christian ;

Weygand, Daniel ;

Zaiser, Michael ;

Zapperi, Stefano .

SCIENCE, 2007, 318 (5848) :251-254

[6] Studies on ferroelectric perovskites and Bi-layered compounds using micro-Raman spectroscopy [J].

Dobal, PS ;

Katiyar, RS .

JOURNAL OF RAMAN SPECTROSCOPY, 2002, 33 (06) :405-423

[7] DIELECTRIC PROPERTIES OF BISMUTH TITANATE [J].

FOUSKOVA, A ;

CROSS, LE .

JOURNAL OF APPLIED PHYSICS, 1970, 41 (07) :2834-&

[8]

Ha HK, 1996, APPL PHYS LETT, V68, P2965, DOI 10.1063/1.116370

[9] Aqueous chemical solution deposition of ferroelectric Ti4+ cosubstituted (Bi,La)4Ti3O12 thin films [J].

Hardy, An ;

D'Haen, Jan ;

Goux, Ludovic ;

Wouters, Dirk ;

Van Bael, Marlies ;

Van den Rul, Heidi ;

Mullens, Jules .

CHEMISTRY OF MATERIALS, 2007, 19 (12) :2994-3001

[10] RAMAN-STUDY OF LOW-TEMPERATURE PHASE-TRANSITIONS IN BISMUTH TITANATE, BI4TI3O12 [J].

IDINK, H ;

SRIKANTH, V ;

WHITE, WB ;

SUBBARAO, EC .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (03) :1819-1823

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