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Journal article
Electronic transition above room temperature in CaMn7O12 films
Applied physics letters, v 107(14), p142901
05 Oct 2015
Abstract
We report on the electronic phase transition in CaMn7O12 quadruple perovskite films synthesized by oxide molecular beam epitaxy on SrLaAlO4 and La0.3Sr0.7Al0.65Ta0.35O3 substrates. We use x-ray diffraction and transmission electron microscopy to confirm that the CaMn7O12 phase has been realized. Temperature dependent resistivity measurements reveal a signature of a charge ordering phase transition at approximate to 425 K, consistent with bulk CaMn7O12. The transition temperature is found to be relatively invariant to changes in the cation stoichiometry. Density functional theory calculations reveal the changes in atomic and electronic structure induced by the charge ordering transition. (C) 2015 AIP Publishing LLC.
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Details
- Title
- Electronic transition above room temperature in CaMn7O12 films
- Creators
- A. Huon - Drexel UniversityA. C. Lang - Drexel UniversityD. Saldana-Greco - University of PennsylvaniaJ. S. Lim - University of PennsylvaniaE. J. Moon - Drexel UniversityA. M. Rappe - University of PennsylvaniaM. L. Taheri - Drexel UniversityS. J. May - Drexel UniversityUniv. of Pennsylvania, Philadelphia, PA (United States)
- Publication Details
- Applied physics letters, v 107(14), p142901
- Publisher
- American Institute of Physics
- Number of pages
- 5
- Grant note
- DE-FG02-07ER46431 / U.S. Department of Energy; United States Department of Energy (DOE) DMR-1040166 / NSF MRI; National Science Foundation (NSF); NSF - Office of the Director (OD) W911NF-15-1-0133; W911NF-11-1-0283 / U.S. Army Research Office N00014-11-1-0664 / U.S. Office of Naval Research; Office of Naval Research
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000363422100048
- Scopus ID
- 2-s2.0-84943339510
- Other Identifier
- 991019167443904721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Physics, Applied