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Journal article
Crystallization engineering as a route to epitaxial strain control
APL materials, v 3(10), pp 106102-106102-6
01 Oct 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The controlled synthesis of epitaxial thin films offers opportunities for tuning their functional properties via enabling or suppressing strain relaxation. Examining differences in the epitaxial crystallization of amorphous oxide films, we report on an alternate, low-temperature route for strain engineering. Thin films of amorphous Bi-Fe-O were grown on (001)SrTiO3 and (001)LaAlO3 substrates via atomic layer deposition. In situ X-ray diffraction and X-ray photoelectron spectroscopy studies of the crystallization of the amorphous films into the epitaxial (001)BiFeO3 phase reveal distinct evolution profiles of crystallinity with temperature. While growth on (001)SrTiO3 results in a coherently strained film, the same films obtained on (001)LaAlO3 showed an unstrained, dislocation-rich interface, with an even lower temperature onset of the perovskite phase crystallization than in the case of (001)SrTiO3. Our results demonstrate how the strain control in an epitaxial film can be accomplished via its crystallization from the amorphous state. (C) 2015 Author(s).
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Details
- Title
- Crystallization engineering as a route to epitaxial strain control
- Creators
- Andrew R. Akbashev - Drexel UniversityAleksandr V. Plokhikh - Drexel UniversityDmitri Barbash - Drexel UniversitySamuel E. Lofland - Rowan UniversityJonathan E. Spanier - Drexel University
- Publication Details
- APL materials, v 3(10), pp 106102-106102-6
- Publisher
- American Institute of Physics
- Number of pages
- 6
- Grant note
- DMR 1124696; IIP 1403463 / NSF; National Science Foundation (NSF) 1403463 / Div Of Industrial Innovation & Partnersh; National Science Foundation (NSF); NSF - Directorate for Engineering (ENG) N00014-15-11-2170 / ONR; Office of Naval Research 1124696 / Direct For Mathematical & Physical Scien; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000364233100027
- Scopus ID
- 2-s2.0-84945161513
- Other Identifier
- 991019168885604721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied