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http://hdl.handle.net/10397/2898
| Title: | Uniaxial strain-modulated conductivity in manganite superlattice (LaMnO₃/SrMnO₃) | Authors: | Cao, D Cai, MQ Hu, WY Peng, J Zheng, Y Huang, H |
Issue Date: | 17-Jan-2011 | Source: | Applied physics letters, 17 Jan. 2011, v. 98, no. 3, 031910, p. 1-3 | Abstract: | We have investigated the magnetic ordering and electrical conductivity transitions of (LaMnO₃)₂/(SrMnO₃)₂ superlattices grown on SrTiO₃ substrate based on density-functional theory. It is found that the uniaxial tensile strain along the z axis of about 1.4% induced a magnetic transition from antiferromagnetic to ferromagnetic ordering. At the interface the orbital order changes from a combination of x²−y² and 3z²−r² to x²−y² as strain becomes more compressive; as a result the electrical transport is transformed from three-dimensions to two-dimensions at the high uniaxial compressive strain. Our results suggest that the out-of-plane electrical conductivity can be modulated and controlled by uniaxial strain. | Keywords: | Compressive strength Electrical conductivity Ferromagnetic-antiferromagnetic transitions Lanthanum compounds Strontium compounds Superlattices Tensile strength |
Publisher: | American Institute of Physics | Journal: | Applied physics letters | ISSN: | 0003-6951 | EISSN: | 1077-3118 | DOI: | 10.1063/1.3548675 | Rights: | © 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in D. Cao et al., Appl. Phys. Lett. 98, 031910 (2011) and may be found at http://apl.aip.org/resource/1/applab/v98/i3/p031910_s1 |
| Appears in Collections: | Journal/Magazine Article |
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|---|---|---|---|---|
| ApplPhysLett_98_031910.pdf | 912.81 kB | Adobe PDF | View/Open |
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