Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/395
Title: Strain-mediated electric-field control of resistance in the La[sub 0.85]Sr[sub 0.15]MnO₃/0.7Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-0.3PbTiO₃ structure
Authors: Zheng, RK
Wang, Y 
Chan, HLW 
Choy, CL 
Luo, H
Issue Date: 10-Apr-2007
Source: Applied physics letters, 10 Apr. 2007, v. 90, 152904, p. 1-3
Abstract: The authors have deposited thin films of La[sub 0.85]Sr[sub 0.15]MnO₃ (LSMO) on 0.7Pb(Mg[sub ⅓]Nb[sub ⅔]O₃-0.3PbTiO₃(PMN-PT) single-crystal substrates and have achieved modulation of the resistance of the LSMO film by applying an electric field across the PMN-PT substrate whether the LSMO film is in the paramagnetic, ferromagnetic, or charge-ordered state. Piezoelectric measurements show that the electric field gives rise to a lattice strain in the PMN-PT substrate via the converse piezoelectric effect, which then induces a lattice strain and hence a resistance change in the LSMO film. Analysis of the data indicates that the electric-field-induced lattice strain effect dominates over the field effect in the LSMO/PMN-PT structure.
Keywords: Lanthanum compounds
Strontium compounds
Lead compounds
Magnetic thin films
Paramagnetic materials
Ferromagnetic materials
Charge-ordered states
Internal stresses
Electrical resistivity
Piezoelectricity
Publisher: American Institute of Physics
Journal: Applied physics letters 
ISSN: 0003-6951
EISSN: 1077-3118
Rights: © 2007 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 R.K. Zheng et al. Appl. Phys. Lett. 90, 152904 (2007) and may be found at http://link.aip.org/link/?apl/90/152904
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