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강상관계 물질 연구단
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Structural properties of ferroelectric heterostructures using coherent bragg rod analysis

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Title
Structural properties of ferroelectric heterostructures using coherent bragg rod analysis
Author(s)
Kyeong Jun Lee; Yeong Jae Shin; Taeyang Choi; Tae Won Noh; Hua Zhou; Seo Hyoung Chang
Publication Date
2020-04
Journal
CURRENT APPLIED PHYSICS, v.20, no.4, pp.505 - 509
Publisher
ELSEVIER SCIENCE BV
Abstract
© 2020 Korean Physical SocietyWe investigated the crystal structure of SrRuO3/BaTiO3/SrRuO3 (SRO/BTO/SRO) heterostructures grown on a SrTiO3 (001) substrate using surface X-ray scattering. The interface structure of SRO/BTO/SRO heterostructures can decrease the critical thickness of ferroelectric BTO films reduced to 3.5 unit cells. Owing to weak intensity of ultrathin films, lab-source-based X-ray measurement cannot determine the atomic arrangement of the heterostructures and their lattice parameters. We introduced synchrotron-based X-ray scattering techniques combined with coherent Bragg rod analysis (COBRA) to resolve the details of the heterostructures. We obtained detailed crystal structural information based on the electron density profiles of the SRO/BTO/SRO heterostructures acquired from COBRA results, e.g., lattice parameters and atomic arrangements
URI
https://pr.ibs.re.kr/handle/8788114/6975
ISSN
1567-1739
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
Files in This Item:
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