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Reversal magnetoresistance effect in ferromagnet/superconductor/ferromagnet/antiferromagnet heterostructure
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10.1063/1.3103330
/content/aip/journal/jap/105/7/10.1063/1.3103330
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3103330
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

XRD pattern of the LSMO/YBCO/LSMO/LCMO heterostructure deposited on (100) substrate. Inset: Pole figure for (102) YBCO deposited on top of the LSMO/LAO.

Image of FIG. 2.
FIG. 2.

Temperature dependence of resistivity for the LSMO/YBCO/LSMO/LCMO heterostructure in various applied magnetic fields of 0, 0.1, 0.5, and 1 T. The magnetic field is parallel to the layers, while electronic current is perpendicular to the magnetic field direction. Upper inset: MR ratio as a function of the temperature, the positive MR ratio is observed. Lower inset: MR ratio as a function of the temperature, the negative MR ratio is observed.

Image of FIG. 3.
FIG. 3.

The out-of-plane and in-plane magnetization curves of the LSMO/YBCO/LSMO/LCMO heterostructure at 100 K. Bottom -axis and left -axis: curve as the . Top -axis and right -axis: curve as the . The in-plane magnetization curve implies the antiparallel magnetization of the two ferromagnetic layers.

Image of FIG. 4.
FIG. 4.

Resistance as a function of magnetic field, loops, of the LSMO/YBCO/LSMO/LCMO heterostructure at different temperatures near the superconducting transition (the dotted curves). The magnetic field is parallel to the layers, while electronic current is perpendicular to the magnetic field direction. The solid curves are the fits based on the thermally activated model using the field dependence of activation energy as . Left inset: temperature dependence of , a characteristic magnetic field corresponding to the onset of the enhanced vortex dissipation occurring in the mixed state of YBCO in the system. Right inset: resistance as a function of magnetic field at 82 K.

Image of FIG. 5.
FIG. 5.

The MR vs for the LSMO/YBCO/LSMO/LCMO heterostructure at temperatures near the superconducting transition.

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/content/aip/journal/jap/105/7/10.1063/1.3103330
2009-04-03
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Reversal magnetoresistance effect in ferromagnet/superconductor/ferromagnet/antiferromagnet heterostructure
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/7/10.1063/1.3103330
10.1063/1.3103330
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