Oscillation of surface in-plane lattice spacing during epitaxial growth of BaTiO3 and SrTiO3 on SrTiO3(100)

被引：7

作者：

Koida, T

Lippmaa, A

Komiyama, D

Kawasaki, M

Koinuma, H

机构：

[1] Tokyo Inst Technol, Frontier Collaborat Res Ctr, Midori Ku, Kanagawa 2268503, Japan

[2] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9800812, Japan

[4] COMET, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[5] Waseda Univ, Japan Sci & Technol Corp, CREST, Shinjuku Ku, Tokyo 1690072, Japan

来源：

APPLIED SURFACE SCIENCE | 2002年 / 185卷 / 3-4期

关键词：

BaTiO3; growth; in-plane lattice spacing oscillation; lattice relaxation process; reflection high-energy electron diffraction (RHEED); surface morphology;

D O I：

10.1016/S0169-4332(01)00785-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In-plane lattice spacing oscillation was observed as functions of surface coverage and growing film thickness by reflection high-energy electron diffraction during the growth of strained BaTiO3 and unstrained SrTiO3 epitaxial layers on SrTiO3(100). For BaTiO3/SrTiO3, the oscillation continued until the critical thickness is reached, whereas for SrTiO3/SrTiO3, oscillation was observed only at the initial few monolayer growth. The origin of oscillations is discussed in relation to the non-tetragonal elastic distortion occurring at the free edges of 2D single monolayer islands. The amplitude of the oscillation strongly depended on the island size and density. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：226 / 230

页数：5

共 12 条

[1] ANISOTROPIC RELAXATION DURING THE FIRST STAGES OF THE GROWTH OF ZNTE/(001) CDTE STRAINED LAYERS STUDIED BY REFLECTION HIGH-ENERGY ELECTRON-DIFFRACTION [J].