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Coaction and distinguishment of converse piezoelectric and field effects in La0.7Ca0.3MnO3/SrTiO3/0.68Pb(Mg1/3Nb2/3)O3-0.32PbTiO3 heterostructures
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10.1063/1.4817018
/content/aip/journal/apl/103/5/10.1063/1.4817018
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/5/10.1063/1.4817018
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) X-ray diffraction pattern of the LCMO/STO/PMN-PT heterostructure; (b) rocking curves taken around LCMO (002) diffraction for samples with and without STO buffer layer; and surface morphologies of LCMO films with (c) and without (d) STO buffer layer.

Image of FIG. 2.
FIG. 2.

(a) hysteresis loops for PMN-PT substrate at different temperatures; (b) in-plane strain of LCMO film . for the LCMO/STO/PMN-PT and (c) LCMO/PMN-PT heterostructures at 300 K.

Image of FIG. 3.
FIG. 3.

Temperature dependencies of the in-plane resistances of LCMO film in samples with and without STO at different poling states. The , , and represent unpolarized, positively, and negatively polarized states, respectively. The inset is the schematic diagram of measurement circuit of the LCMO/STO/PMN-PT heterostructure.

Image of FIG. 4.
FIG. 4.

(a)-(c) Resistances of the LCMO films in “ON” and “OFF” modes, respectively, as a function of polarization electric fields applied to PMN-PT single crystal substrate in different temperatures, the arrows indicate the directions of the sweeping . (d)-(f) Cycled polarization electric fields dependencies of pure strain induced resistance changes Δ of LCMO obtained by subtracting data in “OFF” mode from “ON” mode.

Image of FIG. 5.
FIG. 5.

Temperature dependencies of ER of the LCMO films for samples with and without STO buffer layer in “ON” and “OFF” modes, respectively. The ER of LaCaMnO and LaCaMnO films measured in “ON” mode in earlier reports are also indicated as triangle and pentagon, respectively, for comparison.

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/content/aip/journal/apl/103/5/10.1063/1.4817018
2013-07-30
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Coaction and distinguishment of converse piezoelectric and field effects in La0.7Ca0.3MnO3/SrTiO3/0.68Pb(Mg1/3Nb2/3)O3-0.32PbTiO3 heterostructures
http://aip.metastore.ingenta.com/content/aip/journal/apl/103/5/10.1063/1.4817018
10.1063/1.4817018
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