Electron-transfer-induced metallic electronic states in a H/Fe3O4(001) film subsurface

• Hiura, Satoshi

• Subagyo, Agus

• Murayama, Akihiro

• Sueoka, Kazuhisa

Bibliographic Information

Other Title

• Electron-transfer-induced metallic electronic states in a H/Fe₃O₄(001) film subsurface

Abstract

We investigate the local electronic properties of Fe atoms in a H/Fe3O4(001) film subsurface using scanning tunneling microscopy/spectroscopy (STS). Local barrier height measurements show a H-adsorption-induced reduction of the local work function, indicating electron transfer from H to surface atoms. The STS results and high-resolution spatial mapping of the occupied density of states near the Fermi level reveal that subsurface Fe atoms located beneath a OH group exhibit a metallic electronic state, different from the semiconducting state for intrinsic subsurface Fe atoms. These results can be explained by considering the extension of electron transfer to the subsurface layer. (c) 2019 The Japan Society of Applied Physics

Journal

• Applied Physics Express (APEX)

  Applied Physics Express (APEX) 12 (5), 055502-, 2019-05

  IOP Publishing

Keywords

• General Physics and Astronomy
• General Engineering

Details

• CRID: 1050003824768893056
• NII Article ID: 120006842189
• NII Book ID: AA12295133
• DOI: 10.7567/1882-0786/ab10ce
• ISSN: 18820786
• ISSN: 18820778
• HANDLE: 2115/77799
• Web Site: http://iopscience.iop.org/article/10.7567/1882-0786/ab10ce
• Web Site: http://iopscience.iop.org/article/10.7567/1882-0786/ab10ce/pdf
• Web Site: http://stacks.iop.org/1882-0786/12/i=5/a=055502/pdf
• Web Site: http://stacks.iop.org/1882-0786/12/i=5/a=055502?key=crossref.9822bf52af195081a3cefae525adbadf
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN