Journal article
Tuning between the metallic antiferromagnetic and ferromagnetic phases of La1-xSrxMnO3 near x=0.5 by digital synthesis
Physical review. B, Condensed matter and materials physics, v 80(15), 155114
01 Oct 2009
Abstract
We investigated cation-ordered La1-xSrxMnO3 about the half-doping level x similar to 0.5 in superlattices of alternating, single-unit-cell layers of LaMnO3 and SrMnO3. The effect of La/Sr cation order was addressed by comparing the structural, magnetic and transport properties of these superlattices with random-alloy films of equivalent composition. The samples were synthesized by ozone-assisted molecular-beam epitaxy onto SrTiO3 substrates. The superlattices could be tuned between ferromagnetic and antiferromagnetic metallic states by inserting extra single-unit-cell layers of LaMnO3 and SrMnO3, respectively. For x < 0.5, a ferromagnetic, metallic phase was observed. For x=0.50 and 0.55, A-type antiferromagnetic order was confirmed by neutron diffraction, with a Neel temperature of 300 K, significantly higher than bulk values. The enhanced Neel temperature was attributed to lattice strain rather than cation order.
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Details
- Title
- Tuning between the metallic antiferromagnetic and ferromagnetic phases of La1-xSrxMnO3 near x=0.5 by digital synthesis
- Creators
- Tiffany S. Santos - Argonne National LaboratorySteven J. May - Argonne National LaboratoryJ. L. Robertson - Oak Ridge National LaboratoryAnand Bhattacharya - Argonne National Laboratory
- Publication Details
- Physical review. B, Condensed matter and materials physics, v 80(15), 155114
- Publisher
- Amer Physical Soc
- Number of pages
- 7
- Grant note
- Digital Synthesis FWP at MSD, Argonne Scientific User Facilities Division, Office of Basic Energy Sciences, U. S. Department of Energy; United States Department of Energy (DOE) DE-AC02-06CH11357 / U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences; United States Department of Energy (DOE) CNM
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000271352000047
- Scopus ID
- 2-s2.0-71449097031
- Other Identifier
- 991021934209804721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Multidisciplinary
- Physics, Applied
- Physics, Condensed Matter