Termination and Verwey transition of the (111) surface of magnetite studied by scanning tunneling microscopy and first-principles calculations

Tomoko K. Shimizu, Jaehoon Jung, Hiroyuki S. Kato, Yousoo Kim, Maki Kawai

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Scanning tunneling microscopy and scanning tunneling spectroscopy combined with first-principles calculations have been applied to investigate the (111) surface of a naturally grown Fe3 O4 single crystal. The commonly observed surface is determined as a layer of Fe cations at tetrahedral sites, known as the Fetet1 termination. A surface terminated with Fe cations at octahedral sites, another proposed termination in previous studies, is found only when the surface was prepared under oxygen-poor conditions. Scanning tunneling spectra at room temperature and at 77 K indicate that the (111) surface undergoes a metal-insulator transition.

Original languageEnglish
Article number235429
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number23
DOIs
Publication statusPublished - 2010 Jun 21
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Termination and Verwey transition of the (111) surface of magnetite studied by scanning tunneling microscopy and first-principles calculations'. Together they form a unique fingerprint.

  • Cite this