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Efficient inducement of bistable spin Hall effect using in-plane-magnetized V-shaped ferromagnetic wire
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10.1063/1.4747219
/content/aip/journal/apl/101/8/10.1063/1.4747219
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/8/10.1063/1.4747219
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Figures

Image of FIG. 1.
FIG. 1.

(a) Scanning electron microscope image of the fabricated lateral spin Hall device consisting of V-shaped ferromagnetic Py wires and a Pt strip bridged by a Cu strip together with the probe configuration for the inverse SHE measurement. (b) Calculated magnetic domain structure of the V-shaped Py wire at the remanent state using micromagnetic simulation. (c) MFM image of the V-shaped Py wire at the remanent state after the application of the in-plane magnetic field along the x axis. Inverse spin Hall signals as a function of the in-plane magnetic field along the x axis measured at RT (d) and at 77 K (e). The inset of (e) shows the schematic illustration for the generation principle of the inverse SHE in the Pt strip.

Image of FIG. 2.
FIG. 2.

(a) Field dependence of the inverse spin Hall signal using another V-shaped spin injector at the opposite side. (b) Nonlocal spin valve signal using the V-shaped Py injector and detector with a Pt insertion. The insets of both figures represent the probe configurations for the measurements.

Image of FIG. 3.
FIG. 3.

Schematic illustrations of the device for the direct SHE together with the probe configuration for the measurement (a) and the induced mechanism of the direct SHE (b). (c) Spin Hall signal as a function of the in-plane magnetic field along x axis. (d) Inverse spin Hall signal as a function of the in-plane magnetic field for the same sample. In order to directly compare the resistance changes between two measurements, the offset resistances of and were subtracted from (c) and (d), respectively.

Image of FIG. 4.
FIG. 4.

Inverse spin Hall signal as a function of the external magnetic field at (a) and (b). The insets show the expected magnetic domain structures for the V-shaped Py wire.

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/content/aip/journal/apl/101/8/10.1063/1.4747219
2012-08-21
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Efficient inducement of bistable spin Hall effect using in-plane-magnetized V-shaped ferromagnetic wire
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/8/10.1063/1.4747219
10.1063/1.4747219
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