Ferromagnetic Co3Sn2S2 thin films fabricated by co-sputtering

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Abstract

We synthesized the magnetic Weyl semimetal candidate Co3Sn2S2 as a thin film using the co-sputtering technique. By adjusting the film composition using a sulfur-rich SnS1.5 target with Co metal chips attached, we obtained highly crystallized, single-phase Co3Sn2S2 films. The films showed a ferromagnetic transition around 180 K with perpendicular remanent magnetization. We observed the anomalous Hall effect with a tangent of Hall angle of 0.20 at 130 K, as previously reported for the bulk single crystals. Angular dependence measurements suggested that the magnetization reversal process governed by the domain wall motion leads to a large coercive field in the films.

Original languageEnglish
Article number050912
JournalJapanese journal of applied physics
Volume58
Issue number5
DOIs
Publication statusPublished - 2019

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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