Samenvatting
In spintronic devices relying on magnetic domain-wall (DW) motion, robust control over the DW position is required. We use electric-field control of perpendicular magnetic anisotropy to create a voltage-gated pinning site in a microstructured Pt/Co/AlOx DW conduit. A DW pins at the edge of a gate electrode, and the strength of pinning can be tuned linearly and reversibly with an efficiency of 0.22(1) mT/V. This result is supported by a micromagnetic model, taking full account of the anisotropy step at the gate edge, which is directly caused by a change in the electron density due to the choice of material.
Originele taal-2 | Engels |
---|---|
Artikelnummer | 102411 |
Pagina's (van-tot) | 102411-1/5 |
Aantal pagina's | 5 |
Tijdschrift | Applied Physics Letters |
Volume | 103 |
Nummer van het tijdschrift | 10 |
DOI's | |
Status | Gepubliceerd - 2014 |