Growth mode mapping and structural properties of controlled perovskite BaTiO3/SrTiO3heterostructure

Jin Long Li, Jianhua Hao, Zhang Ying, Yanrong Li

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9 Citations (Scopus)

Abstract

Perovskite heteroepitaxy was investigated under various conditions using laser molecular beam epitaxy. Well-controlled BaTi O3 SrTi O3 heterostructure was studied with in situ reflective high energy electron diffraction and ex situ atomic force microscopy, x-ray diffraction, and transmission electron microscopy. The growth mode map of BaTi O3 thin films was obtained as a function of substrate temperature under 600 °C for various laser repetition rates. The effective activation energy of surface migration was determined to be 0.33 eV. A mechanism of surface migration in BaTi O3 heteroepitaxy was described for a basic understanding of atomic-scale controlled preparation of ferroelectric heterostructures at low temperature.
Original languageEnglish
Article number201919
JournalApplied Physics Letters
Volume91
Issue number20
DOIs
Publication statusPublished - 23 Nov 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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