Ferroelectric domain structures in <001>-oriented K0.15Na0.85NbO3lead-free single crystal

Yan Chen; Chi Man Wong; Hao Deng; Hei Man Yau; Danyang Wang; Zhibo Yan; Haosu Luo; Helen L.W. Chan; Jiyan Dai

doi:10.1063/1.4914936

Ferroelectric domain structures in <001>-oriented K_0.15Na_0.85NbO₃lead-free single crystal

Yan Chen, Chi Man Wong, Hao Deng, Hei Man Yau, Danyang Wang, Zhibo Yan, Haosu Luo, Helen L.W. Chan, Jiyan Dai

Research output: Journal article publication › Journal article › Academic research › peer-review

8 Citations (Scopus)

Abstract

In this work, ferroelectric domain structures of <001 >-oriented K0.15Na0.85NbO3single crystal are characterized. Transmission electron microscopy (TEM) observation revealed high-density of laminate domain structures in the crystal and the lattices of the neighboring domains are found to be twisted in a small angle. Superlattice diffraction spots of 1/2 {eeo } and 1/2 {ooe} in electron diffraction patterns are observed in the crystal, revealing the a+a+c-tilting of oxygen octahedral in the perovskite structure. The piezoresponse of domains and in-situ poling responses of K0.15Na0.85NbO3crystal are observed by piezoresponse force microscopy (PFM), and the results assure its good ferroelectric properties.

Original language	English
Article number	037117
Journal	AIP Advances
Volume	5
Issue number	3
DOIs	https://doi.org/10.1063/1.4914936
Publication status	Published - 1 Mar 2015

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.4914936

http://hdl.handle.net/10397/20667

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title = "Ferroelectric domain structures in <001>-oriented K0.15Na0.85NbO3lead-free single crystal",

abstract = "In this work, ferroelectric domain structures of <001 >-oriented K0.15Na0.85NbO3single crystal are characterized. Transmission electron microscopy (TEM) observation revealed high-density of laminate domain structures in the crystal and the lattices of the neighboring domains are found to be twisted in a small angle. Superlattice diffraction spots of 1/2 {eeo } and 1/2 {ooe} in electron diffraction patterns are observed in the crystal, revealing the a+a+c-tilting of oxygen octahedral in the perovskite structure. The piezoresponse of domains and in-situ poling responses of K0.15Na0.85NbO3crystal are observed by piezoresponse force microscopy (PFM), and the results assure its good ferroelectric properties.",

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T1 - Ferroelectric domain structures in <001>-oriented K0.15Na0.85NbO3lead-free single crystal

AU - Chen, Yan

AU - Wong, Chi Man

AU - Deng, Hao

AU - Yau, Hei Man

AU - Wang, Danyang

AU - Yan, Zhibo

AU - Luo, Haosu

AU - Chan, Helen L.W.

AU - Dai, Jiyan

PY - 2015/3/1

Y1 - 2015/3/1

N2 - In this work, ferroelectric domain structures of <001 >-oriented K0.15Na0.85NbO3single crystal are characterized. Transmission electron microscopy (TEM) observation revealed high-density of laminate domain structures in the crystal and the lattices of the neighboring domains are found to be twisted in a small angle. Superlattice diffraction spots of 1/2 {eeo } and 1/2 {ooe} in electron diffraction patterns are observed in the crystal, revealing the a+a+c-tilting of oxygen octahedral in the perovskite structure. The piezoresponse of domains and in-situ poling responses of K0.15Na0.85NbO3crystal are observed by piezoresponse force microscopy (PFM), and the results assure its good ferroelectric properties.

AB - In this work, ferroelectric domain structures of <001 >-oriented K0.15Na0.85NbO3single crystal are characterized. Transmission electron microscopy (TEM) observation revealed high-density of laminate domain structures in the crystal and the lattices of the neighboring domains are found to be twisted in a small angle. Superlattice diffraction spots of 1/2 {eeo } and 1/2 {ooe} in electron diffraction patterns are observed in the crystal, revealing the a+a+c-tilting of oxygen octahedral in the perovskite structure. The piezoresponse of domains and in-situ poling responses of K0.15Na0.85NbO3crystal are observed by piezoresponse force microscopy (PFM), and the results assure its good ferroelectric properties.

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DO - 10.1063/1.4914936

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ER -

Ferroelectric domain structures in <001>-oriented K_0.15Na_0.85NbO₃lead-free single crystal

Abstract

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