Atomic structure of Ba0.5Sr0.5TiO3 thin films on LaAlO3

被引：62

作者：

Gao, HJ ^{[1
]}

Chen, CL

Rafferty, B

Pennycook, SJ

Luo, GP

Chu, CW

机构：

[1] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA

[2] Univ Houston, Dept Phys, Houston, TX 77204 USA

[3] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 17期

关键词：

D O I：

10.1063/1.125071

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Perovskite barium strontium titanate Ba0.5Sr0.5TiO3(BST) thin films were grown on (001) LaAlO3 (LAO) using pulsed-laser ablation. The microstructures of the as-grown BST films were studied with selected electron diffraction, transmission electron microscopy, and scanning transmission electron microscopy. The BST thin films are oriented with their [001] directions parallel to the < 102 > directions of the LAO. Both cross-sectional and plan-view studies show the BST films to be single crystals with smooth surfaces. The interfaces were seen to be atomically sharp by cross-sectional, high-resolution electron microscopy. The density of misfit dislocations was consistent with the 4.3% lattice mismatch, and they were found to be dissociated into partials. (C) 1999 American Institute of Physics. [S0003-6951(99)00443-X].

引用

页码：2542 / 2544

页数：3

共 20 条

[1] EPITAXIAL-GROWTH AND DIELECTRIC-PROPERTIES OF (BA0.24SR0.76)TIO3 THIN-FILM [J].

ABE, K ;

KOMATSU, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1994, 33 (9B) :5297-5300

[2] The physics of ferroelectric memories [J].

Auciello, O ;

Scott, JF ;

Ramesh, R .

PHYSICS TODAY, 1998, 51 (07) :22-27

[3]

BJORMANDER C, 1994, APPL PHYS LETT, V64, P3646, DOI 10.1063/1.111191

[4] MICROWAVE MEASUREMENT OF THE DIELECTRIC-CONSTANT OF SR0.5BA0.5TIO3 FERROELECTRIC THIN-FILMS [J].

CARROLL, KR ;

POND, JM ;

CHRISEY, DB ;

HORWITZ, JS ;

LEUCHTNER, RE ;

GRABOWSKI, KS .

APPLIED PHYSICS LETTERS, 1993, 62 (15) :1845-1847

[5] Epitaxial ferroelectric Ba0.5Sr0.5TiO3 thin films for room-temperature tunable element applications [J].

Chen, CL ;

Feng, HH ;

Zhang, Z ;

Brazdeikis, A ;

Huang, ZJ ;

Chu, WK ;

Chu, CW ;

Miranda, FA ;

Van Keuls, FW ;

Romanofsky, RR ;

Liou, Y .

APPLIED PHYSICS LETTERS, 1999, 75 (03) :412-414

[6] ELECTRICALLY TUNABLE COPLANAR TRANSMISSION-LINE RESONATORS USING YBA2CU3O7-X/SRTIO3 BILAYERS [J].

FINDIKOGLU, AT ;

JIA, QX ;

CAMPBELL, IH ;

WU, XD ;

REAGOR, D ;

MOMBOURQUETTE, CB ;

MCMURRY, D .

APPLIED PHYSICS LETTERS, 1995, 66 (26) :3674-3676

[7]

HORWITZ JS, 1995, MATER RES SOC SYMP P, V361, P515

[8]

Horwitz JS, 1998, INTEGR FERROELECTR, V22, P799, DOI 10.1080/10584589808208049

[9]

KIM MY, 1999, MICROSC MICROANAL S2, V5, P110

[10]

KINGON AI, 1991, MAT RES SOC, V243

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