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Development of an Ultra-High Vacuum Scanning Nonlinear Dielectric Microscope and Near Atomic-Scale Observation of Ferroelectric Material Surfaces

Published online by Cambridge University Press:  01 February 2011

Hiroyuki Odagawa  and
Yasuo Cho
Hiroyuki Odagawa
Affiliation:
Research Institute of Electrical Communication, Tohoku University, Sendai 980–8577, Japan
Yasuo Cho
Affiliation:
Research Institute of Electrical Communication, Tohoku University, Sendai 980–8577, Japan
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Abstract

This paper describes a newly developed ultra-high vacuum type scanning nonlinear dielectric microscope (UHV-SNDM) and the results from a ferroelectric LiTaO3 single crystal measured by the UHV-SNDM. In a cleaved (012) surface of LiTaO3 crystal, we can clearly observe a striped pattern with a period of about 0.3 nm and a granular pattern approximately corresponding to the sub-lattice period. From this image, we confirmed that the SNDM can be applied to lattice-level measurement in ferroelectric insulator materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 838: Symposium O – Scanning Probe and Other Novel Microscopies of Local Phenomena in Nanostructured Materials , 2004 , O14.1
Copyright
Copyright © Materials Research Society 2005

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References

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