Scanning Capacitance Microscopy of Triglycine Sulfate Crystals with the Profile Chromium Distribution


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The spatial capacitance distribution, domain wall configuration, and impurity composition of triglycine sulfate TGS–TGS + Cr crystals with a growth periodic impurity structure have been investigated using scanning capacitance microscopy and X-ray fluorescence and topography. The chromium ion concentration in the strips emerging to the surface has been determined, and the periodic impurity distribution has been established. The difference between the chromium concentrations in nominally pure and impurity strips was found to be ~0.08 wt %, which is reflected in a variation in the capacitance image contrast by 0.17%. It is shown that capacitance images carry information about localization of the impurity gradient regions and domain walls and make it possible to establish a correlation between the defect and domain structures of a ferroelectric crystal.

作者简介

R. Gainutdinov

Shubnikov Institute of Crystallography, Federal Research Centre “Crystallography and Photonics,”

Email: alla@crys.ras.ru
俄罗斯联邦, Moscow, 119333

A. Tolstikhina

Shubnikov Institute of Crystallography, Federal Research Centre “Crystallography and Photonics,”

编辑信件的主要联系方式.
Email: alla@crys.ras.ru
俄罗斯联邦, Moscow, 119333

N. Belugina

Shubnikov Institute of Crystallography, Federal Research Centre “Crystallography and Photonics,”

Email: alla@crys.ras.ru
俄罗斯联邦, Moscow, 119333

B. Roshchin

Shubnikov Institute of Crystallography, Federal Research Centre “Crystallography and Photonics,”

Email: alla@crys.ras.ru
俄罗斯联邦, Moscow, 119333

D. Zolotov

Shubnikov Institute of Crystallography, Federal Research Centre “Crystallography and Photonics,”

Email: alla@crys.ras.ru
俄罗斯联邦, Moscow, 119333

V. Asadchikov

Shubnikov Institute of Crystallography, Federal Research Centre “Crystallography and Photonics,”

Email: alla@crys.ras.ru
俄罗斯联邦, Moscow, 119333

V. Shut

Institute of Technical Acoustics

Email: alla@crys.ras.ru
白俄罗斯, Vitebsk, 210027

I. Kashevich

Vitebsk State University

Email: alla@crys.ras.ru
白俄罗斯, Vitebsk, 210032

S. Mozzharov

Institute of Technical Acoustics

Email: alla@crys.ras.ru
白俄罗斯, Vitebsk, 210027

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