Journal
APPLIED PHYSICS LETTERS
Volume 77, Issue 22, Pages 3547-3549Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1328762
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Effects of induced biaxial strain on the electrical transport and magnetic properties of epitaxial thin films of SrRuO3 and La0.67Sr0.33MnO3 by structural transitions of ferroelectric BaTiO3 substrates have been studied. Large jumps of electrical resistivity (similar to5% in SrRuO3 and similar to 12% in La0.67Sr0.33MnO3) and low field magnetization (similar to 70% in La0.67Sr0.33MnO3) have been observed in the films at the structural transition temperatures of BaTiO3 substrate. The hysteretic jumps are reproducible through many thermal cycles, and they can be attributed to strain effects induced by the substrate. The use of phase transitions of ferroelectric substrates to manipulate lattice strain of epitaxial thin film heterostructures can be a useful way to modify the properties of perovskite oxides. (C) 2000 American Institute of Physics. [S0003-6951(00)01848-9].
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