期刊
APPLIED PHYSICS LETTERS
卷 103, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4817018
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资金
- National Natural Science Foundation of China
- National Basic Research Program of China [2012CB922003, 2011CBA00102, 2009CB929502]
The volatile and nonvolatile electroresistances related to the converse piezoelectric induced strain and ferroelectric field effects are improved in La0.7Ca0.3MnO3/SrTiO3/0.68Pb( Mg1/3Nb2/3)O-3-0.32PbTiO(3) heterostructures by inserting a SrTiO3 buffer layer. Due to the coaction of the strain and field effects, the tri-resistance states are observed, and the relative contributions of the two effects on the resistance changes can be quantitatively distinguished by a programmable control of the polarization electric fields in ON and OFF modes, respectively. Our results indicate that the well-designed heterostructure exhibits potential for application in multifunctional devices. (C) 2013 AIP Publishing LLC.
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