Scanning nonlinear dielectric potentiometry

Kohei Yamasue, Yasuo Cho

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Measuring spontaneous polarization and permanent dipoles on surfaces and interfaces on the nanoscale is difficult because the induced electrostatic fields and potentials are often influenced by other phenomena such as the existence of monopole fixed charges, screening charges, and contact potential differences. A method based on tip-sample capacitance detection and bias feedback is proposed which is only sensitive to polarization- or dipole-induced potentials, unlike Kelvin probe force microscopy. The feasibility of this method was demonstrated by simultaneously measuring topography and polarization-induced potentials on a reconstructed Si(111)-(7 × 7) surface with atomic resolution.

本文言語English
論文番号093704
ジャーナルReview of Scientific Instruments
86
9
DOI
出版ステータスPublished - 2015 9 1

ASJC Scopus subject areas

  • Instrumentation

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