Stability of spinmotive force in perpendicularly magnetized nanowires under high magnetic fields

作者：Yamane Y^*; Ieda J; Maekawa S

来源：Applied Physics Letters, 2012, 100(16): 162401.

DOI：10.1063/1.4703933

• cobalt
• iron alloys
• magnetic anisotropy
• magnetic domain walls
• magnetic multilayers
• nanomagnetics
• nanowires
• nickel
• platinum alloys
• spin polarised transport

Spinmotive force induced by domain wall motion in perpendicularly magnetized nanowires is numerically demonstrated. We show that using nanowires with large magnetic anisotropy can lead to a high stability of spinmotive force under strong magnetic fields. We observe spinmotive force in the order of tens of mu V in a multilayered Co/Ni nanowire and several hundreds of mu V in a L1(0)-ordered FePt nanowire; the latter is two orders of magnitude greater than that in permalloy nanowires reported previously. The narrow structure and low mobility of a domain wall under magnetic fields in perpendicularly magnetized nanowires permits downsizing of spinmotive force devices.

• 出版日期2012-4-16