Improved study of electric dipoles on the Si(100)-2×1 surface by non-contact scanning nonlinear dielectric microscopy

Masataka Suzuki, Kohei Yamasue, Masayuki Abe, Yoshiaki Sugimoto, Yasuo Cho

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We studied a Si(100)-2×1 surface by non-contact scanning nonlinear dielectric microscopy (NC-SNDM). Simultaneously taken images of the topography and electric dipole moment distribution show that negative electric dipole moments are locally formed on individual dimers on the surface. In addition, we obtained the dc bias voltage dependence of the εlocal(3) signal on a specific dimer by using an atom-tracking technique with NC-SNDM. We observed that the electric dipole induced a surface potential of around -250mV on the dimer.

Original languageEnglish
Article number101603
JournalApplied Physics Letters
Volume105
Issue number10
DOIs
Publication statusPublished - 2014 Sep 8

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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