Growth and electrical transport properties of thin films on single crystals
Abstract
We report the physical properties of La0.7Sr0.3MnO3 thin films on Sr2IrO4 single crystals. The manganite films are deposited using oxide molecular beam epitaxy on flux-grown (001)-oriented iridate crystals. Temperature-dependent magnetotransport and x-ray magnetic circular dichroism measurements reveal the presence of a ferromagnetic metallic ground state in the films, consistent with films grown on SrTiO3 and La0.3Sr0.7Al0.65Ta0.35O3. A parallel resistance model is used to separate conduction effects within the Sr2IrO4 substrate and the La0.7Sr0.3MnO3 thin films, revealing that the measured resistance maximum does not correspond to the manganite Curie temperature but results from a convolution of properties of the near-insulating substrate and metallic film. The ability to grow and characterize epitaxial perovskites on Sr2IrO4 crystals enables a new route for studying magnetism at oxide interfaces in the presence of strong spin-orbit interactions.
- Authors:
-
- Drexel Univ., Philadelphia, PA (United States). Dept. of Materials Science and Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1352797
- Alternate Identifier(s):
- OSTI ID: 1352463; OSTI ID: 1476484
- Grant/Contract Number:
- AC05-00OR22725; AC02-05CH11231
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 95; Journal Issue: 15; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Moon, E. J., May, A. F., Shafer, P., Arenholz, E., and May, S. J. Growth and electrical transport properties of La0.7Sr0.3MnO3 thin films on Sr2IrO4 single crystals. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.95.155135.
Moon, E. J., May, A. F., Shafer, P., Arenholz, E., & May, S. J. Growth and electrical transport properties of La0.7Sr0.3MnO3 thin films on Sr2IrO4 single crystals. United States. https://doi.org/10.1103/PhysRevB.95.155135
Moon, E. J., May, A. F., Shafer, P., Arenholz, E., and May, S. J. 2017.
"Growth and electrical transport properties of La0.7Sr0.3MnO3 thin films on Sr2IrO4 single crystals". United States. https://doi.org/10.1103/PhysRevB.95.155135. https://www.osti.gov/servlets/purl/1352797.
@article{osti_1352797,
title = {Growth and electrical transport properties of La0.7Sr0.3MnO3 thin films on Sr2IrO4 single crystals},
author = {Moon, E. J. and May, A. F. and Shafer, P. and Arenholz, E. and May, S. J.},
abstractNote = {We report the physical properties of La0.7Sr0.3MnO3 thin films on Sr2IrO4 single crystals. The manganite films are deposited using oxide molecular beam epitaxy on flux-grown (001)-oriented iridate crystals. Temperature-dependent magnetotransport and x-ray magnetic circular dichroism measurements reveal the presence of a ferromagnetic metallic ground state in the films, consistent with films grown on SrTiO3 and La0.3Sr0.7Al0.65Ta0.35O3. A parallel resistance model is used to separate conduction effects within the Sr2IrO4 substrate and the La0.7Sr0.3MnO3 thin films, revealing that the measured resistance maximum does not correspond to the manganite Curie temperature but results from a convolution of properties of the near-insulating substrate and metallic film. The ability to grow and characterize epitaxial perovskites on Sr2IrO4 crystals enables a new route for studying magnetism at oxide interfaces in the presence of strong spin-orbit interactions.},
doi = {10.1103/PhysRevB.95.155135},
url = {https://www.osti.gov/biblio/1352797},
journal = {Physical Review B},
issn = {2469-9950},
number = 15,
volume = 95,
place = {United States},
year = {Thu Apr 20 00:00:00 EDT 2017},
month = {Thu Apr 20 00:00:00 EDT 2017}
}
Web of Science
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