Kelvin Probe Force Microscopy of Periodic Ferroelectric Domain Structure in KTiOPO4 Crystals

Maria M. Shvebelman; Alex G. Agronin; Ronen P. Urenski; Yossi Rosenwaks; Gil I. Rosenman

doi:10.1021/nl025523e

Kelvin Probe Force Microscopy of Periodic Ferroelectric Domain Structure in KTiOPO₄ Crystals

Maria M. Shvebelman, Alex G. Agronin, Ronen P. Urenski, Yossi Rosenwaks, Gil I. Rosenman^*

^*Corresponding author for this work

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Mono- and periodically poled domain structures of ferroelectric KTiOPO₄ crystals have been studied by Kelvin probe force microscopy. This scanning probe method has allowed us to image the domain structure using a contact potential difference contrast between 180° ferroelectric domains. The measured contact potential difference between adjacent domains showed that the screening in the KTiOPO₄ crystals is provided by the highly mobile potassium ions. The screening charge density distribution and the resulting Debye length near the polar faces have been estimated.

Original language	English
Pages (from-to)	455-458
Number of pages	4
Journal	Nano Letters
Volume	2
Issue number	5
DOIs	https://doi.org/10.1021/nl025523e
State	Published - May 2002

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10.1021/nl025523e

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abstract = "Mono- and periodically poled domain structures of ferroelectric KTiOPO4 crystals have been studied by Kelvin probe force microscopy. This scanning probe method has allowed us to image the domain structure using a contact potential difference contrast between 180° ferroelectric domains. The measured contact potential difference between adjacent domains showed that the screening in the KTiOPO4 crystals is provided by the highly mobile potassium ions. The screening charge density distribution and the resulting Debye length near the polar faces have been estimated.",

author = "Shvebelman, {Maria M.} and Agronin, {Alex G.} and Urenski, {Ronen P.} and Yossi Rosenwaks and Rosenman, {Gil I.}",

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AU - Rosenwaks, Yossi

AU - Rosenman, Gil I.

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N2 - Mono- and periodically poled domain structures of ferroelectric KTiOPO4 crystals have been studied by Kelvin probe force microscopy. This scanning probe method has allowed us to image the domain structure using a contact potential difference contrast between 180° ferroelectric domains. The measured contact potential difference between adjacent domains showed that the screening in the KTiOPO4 crystals is provided by the highly mobile potassium ions. The screening charge density distribution and the resulting Debye length near the polar faces have been estimated.

AB - Mono- and periodically poled domain structures of ferroelectric KTiOPO4 crystals have been studied by Kelvin probe force microscopy. This scanning probe method has allowed us to image the domain structure using a contact potential difference contrast between 180° ferroelectric domains. The measured contact potential difference between adjacent domains showed that the screening in the KTiOPO4 crystals is provided by the highly mobile potassium ions. The screening charge density distribution and the resulting Debye length near the polar faces have been estimated.

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Kelvin Probe Force Microscopy of Periodic Ferroelectric Domain Structure in KTiOPO₄ Crystals

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