High-Energy Proton-Irradiation Effects on the Magnetism of the Transition-Metal Dichalcogenide MoS2

Gi Wan Jeon, Kyu Won Lee, Cheol Eui Lee

Research output: Contribution to journalArticle

Abstract

We have studied the effects of high-energy proton irradiation on the magnetism of the transition-metal dichalcogenide MoS2. The pristine sample showed ferromagnetic and paramagnetic responses with a diamagnetic background, which all decreased initially with increasing irradiation dose. The ferromagnetic component increased subsequently with further irradiation, for which a spin-3/2 species was identified from the analysis of the M(H) curve, in contrast to the spin-1 species identified in the pristine sample. The magnetism in our MoS2 samples may be accounted for by the structural defects that apparently are cured by low-dose proton irradiation and subsequently become significant by further irradiation.

Original languageEnglish
Pages (from-to)93-96
Number of pages4
JournalJournal of the Korean Physical Society
Volume76
Issue number1
DOIs
Publication statusPublished - 2020 Jan 1

Keywords

  • High-energy proton irradiation
  • Magnetism
  • MoS
  • Structural defects

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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