Electric field effect on magnetic anisotropy for Fe-Pt-Pd
          alloys

S. Kikushima; T. Seki; K. Uchida; E. Saitoh; K. Takanashi

doi:10.1063/1.4999326

AIP Advances (Aug 2017)

Electric field effect on magnetic anisotropy for Fe-Pt-Pd alloys

S. Kikushima,
T. Seki,
K. Uchida,
E. Saitoh,
K. Takanashi

Affiliations

S. Kikushima: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
T. Seki: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
K. Uchida: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
E. Saitoh: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
K. Takanashi: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan

DOI: https://doi.org/10.1063/1.4999326
Journal volume & issue: Vol. 7, no. 8
pp. 085210 – 085210-7

Abstract

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The electric field effect on magnetic anisotropy was investigated for the FePt1-xPdx alloy films with perpendicular magnetic anisotropy. The polar magneto-optical Kerr (p-MOKE) loops were measured under the electric field application in order to evaluate the electric field-induced perpendicular magnetic anisotropy change per area (Δεperpt). A clear change in the saturation field of p-MOKE loop was observed for FePt by varying the applied electric field (ΔE). In the case of FePt, Δεperpt divided by ΔE was evaluated to be -129 (fJ/Vm). We found that the magnitude of Δεperpt / ΔE was significantly reduced with increasing x.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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