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Piezoelectric enhancement of giant magnetoresistance in spin-valves with different magnetic anisotropies
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10.1063/1.4775574
/content/aip/journal/jap/113/2/10.1063/1.4775574
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/2/10.1063/1.4775574
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The magnetoelectric coupling for the sample S 1 measured in parallel state under applied magnetic field of +200 Oe at room-temperature.

Image of FIG. 2.
FIG. 2.

The giant magnetoresistance ratio as a function of electric field at room-temperature for (a) S 1 and (b) S 4, respectively; the inset of (a) shows the schematic of samples deposition and measurement.

Image of FIG. 3.
FIG. 3.

Schematic of the model explaining the increasing trend of the GMR ratio for (a) S 1 and (b) S 4, whereas the orange color shows the bottom metallic layer contact, the blue color shows the piezoelectric substrate, and red arrows show the electric-field polarization. The figure shows the change of magnetization under applied electric field for different samples causing progressive improvement of the antiparallel alignment.

Image of FIG. 4.
FIG. 4.

The GMR ratio vs. magnetic field under electric field measured for (a) S 2 and (b) S 3, respectively. The GMR ratio as a function of electric field measured at room-temperature for samples S 1 (open black circles), S 2 (open red squares), S 3 (open blue upward triangles), and S 4 (open green downward triangles), respectively. The solid lines drawn are guide to the eye.

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/content/aip/journal/jap/113/2/10.1063/1.4775574
2013-01-14
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Piezoelectric enhancement of giant magnetoresistance in spin-valves with different magnetic anisotropies
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/2/10.1063/1.4775574
10.1063/1.4775574
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