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 journalArticlepeer-review

6 Citations (Scopus)


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
Issue number1
Publication statusPublished - 2020 Jan 1

Bibliographical note

Funding Information:
This work was supported by the Ministry of Education and the National Research Foundation of Korea (Project No. 2019S1A5A2A03050121). The Korea Basic Science Institute (KBSI) and the Korea Multi-Purpose Accelerator Complex (KOMAC) are, respectively, acknowledged for the measurements and the proton irradiation.

Publisher Copyright:
© 2020, The Korean Physical Society.


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

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'High-Energy Proton-Irradiation Effects on the Magnetism of the Transition-Metal Dichalcogenide MoS2'. Together they form a unique fingerprint.

Cite this