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http://hdl.handle.net/10397/552
Title: | Determination of the strain dependence of resistance in La[sub 0.7]Sr[sub 0.3]MnO₃/PMN-PT using the converse piezoelectric effect |
Authors: | Zheng, RK Wang, Y Chan, HLW Choy, CL Luo, H |
Issue Date: | 5-Jun-2007 |
Source: | Physical review. B, Condensed matter and materials physics, 5 June 2007, v. 75, 212102, p. 1-4 |
Abstract: | We have deposited La[sub 0.7]Sr[sub 0.3]MnO₃ (LSMO) thin films on piezoelectric (1−x)Pb(Mg[sub ⅓]Nb[sub ⅔])O₃−xPbTiO₃ (x~0.3)(PMN-PT) single-crystal substrates and studied the effects of substrate-induced lattice strain on the resistance of the LSMO films. By applying electric fields across the PMN-PT substrate, we in situ induce an in-plane compressive (tensile) strain in the PMN-PT substrate via the converse piezoelectric effect. The induced strain is transferred to the LSMO film, which then imposes an in-plane compressive (tensile) strain on the LSMO film, thereby causing a linear decrease (increase) in the resistance of the LSMO film. Based on the experimental results, we establish quantitative relationships between the resistance of the LSMO film and the converse piezoelectric-effect-induced out-of-plane and in-plane strains in the PMN-PT substrate and LSMO film, respectively. |
Keywords: | Lanthanum compounds Strontium compounds Lead compounds Electrical resistivity Piezoelectric materials Piezoelectric thin films |
Publisher: | American Physical Society |
Journal: | Physical review. B, Condensed matter and materials physics |
ISSN: | 1098-0121 |
EISSN: | 1550-235X |
Rights: | Physical Review B © 2007 American Physical Society. The Journal's web site is located at http://prb.aps.org/ |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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converse-piezoelectric_07.pdf | 195.71 kB | Adobe PDF | View/Open |
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