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

doi:10.1063/1.4895031

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 journal › Article › peer-review

6 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 ε_local(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 language	English
Article number	101603
Journal	Applied Physics Letters
Volume	105
Issue number	10
DOIs	https://doi.org/10.1063/1.4895031
Publication status	Published - 2014 Sept 8

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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.",

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AU - Suzuki, Masataka

AU - Yamasue, Kohei

AU - Abe, Masayuki

AU - Sugimoto, Yoshiaki

AU - Cho, Yasuo

PY - 2014/9/8

Y1 - 2014/9/8

N2 - 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.

AB - 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.

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

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