Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2898
Title: Uniaxial strain-modulated conductivity in manganite superlattice (LaMnO₃/SrMnO₃)
Authors: Cao, Dan
Cai, Meng-Qiu
Hu, Wang-Yu
Peng, Jun
Zheng, Yue
Huang, Haitao
Subjects: Compressive strength
Electrical conductivity
Ferromagnetic-antiferromagnetic transitions
Lanthanum compounds
Strontium compounds
Superlattices
Tensile strength
Issue Date: 17-Jan-2011
Publisher: American Institute of Physics
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.
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
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/2898
DOI: 10.1063/1.3548675
ISSN: 0003-6951 (print)
1077-3118 (online)
Appears in Collections:AP Journal/Magazine Articles

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