Anomalous hall effect and anisotropic magnetoresistance in perpendicularly magnetized FePt1-xPdx films

T. Seki, S. Kikushima, K. Takanashi

Research output: Contribution to journalArticlepeer-review

Abstract

L10-ordered alloys with high uniaxial magnetic anisotropy (Ku) are key materials for future spintronic devices to realize large-scale integration. In this study, we investigated the anomalous Hall effect (AHE) and anisotropic magnetoresistance (AMR) effect for FePt1-xPdx (001) epitaxial films. Highly L10-ordered structures and perpendicular magnetization were obtained for all the compositions. The FePt film exhibited the highest Ku and the largest anomalous Hall angle (θAHE) among the present FePt1-xPdx samples, and the values of Ku and θAHE were gradually decreased as the Pd concentration increased. In addition, the composition dependence of the AMR ratio showed a similar tendency to those for Ku and AHE. We discuss possible scenarios to explain these composition dependencies.

Original languageEnglish
Pages (from-to)29-33
Number of pages5
JournalJournal of the Magnetics Society of Japan
Volume43
Issue number2
DOIs
Publication statusPublished - 2019

Keywords

  • Anisotropic magnetoresistance effect
  • Anomalous Hall effect
  • L10-type ordered alloy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Instrumentation

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