Electron spin resonance study of mixed Bi2Se3 topological insulator–magnetic insulator nanoparticles

Kyu Won Lee, Yeo Jin Lee, Cheol Eui Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We investigated Bi2Se3 topological insulator nanoparticles mixed with room-temperature ferromagnetic insulator nanoparticles by using electron spin resonance (ESR) of the surface conduction electrons in the Bi2Se3 nanoparticles. The ESR intensity and linewidth as a function of the molar ratio of the magnetic insulator could be well understood in terms of the magnetic proximity effect due to the short-range exchange field of the magnetic insulator nanoparticles along with the long-range magnetic dipole field effect and the surface-to-volume ratio effect.

Original languageEnglish
Article number111554
JournalJournal of Physics and Chemistry of Solids
Volume182
DOIs
Publication statusPublished - 2023 Nov

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Ltd

Keywords

  • BiSe nanoparticles
  • Electron spin resonance
  • Magnetic proximity effect
  • Topological insulator

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics

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