Effect of sample-preparation history on domain and crystal structure in a relaxor-ferroelectric single crystal

Jongchul Jeon; Soong Ju Oh; Kyou Hyun Kim

doi:10.1107/S1600576720001235

Effect of sample-preparation history on domain and crystal structure in a relaxor-ferroelectric single crystal

Jongchul Jeon, Soong Ju Oh, Kyou Hyun Kim

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

Abstract

The effect of sample-preparation procedures on single crystals of the relaxor-based ferroelectric Pb(Mg1/3Nb2/3)O3-31%PbTiO3 (PMN-31%PT) has been investigated. PMN-31%PT single crystals were treated using the general sample-preparation methods of mechanical polishing and Ar-ion milling. Similar domain structures were artificially induced in both the mechanically polished and the Ar-ion milled PMN-31%PT; this domain structure was not observed in the original PMN-31%PT single crystal. Macroscopic structural investigation using X-ray diffraction showed that these general sample-preparation methods induce a structural change from a monoclinic-like to a tetragonal-like structure. A study of local symmetry also indicated that Ar-ion milling induces a structural change from the original monoclinic-like crystal symmetry to a tetragonal-like crystal symmetry. It is also demonstrated that the conventional sample-preparation methods induce a poling-like effect on PMN-31%PT.

Original language	English
Pages (from-to)	381-386
Number of pages	6
Journal	Journal of Applied Crystallography
Volume	53
DOIs	https://doi.org/10.1107/S1600576720001235
Publication status	Published - 2020 Apr 1

Keywords

convergent-beam electron diffraction
relaxor-based ferrroelectrics
sample preparation
symmetry investigation
symmetry quantification

ASJC Scopus subject areas

Biochemistry, Genetics and Molecular Biology(all)

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10.1107/S1600576720001235

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@article{81c95e5c19fa4c36babf3dc6f974e8e7,

title = "Effect of sample-preparation history on domain and crystal structure in a relaxor-ferroelectric single crystal",

abstract = "The effect of sample-preparation procedures on single crystals of the relaxor-based ferroelectric Pb(Mg1/3Nb2/3)O3-31%PbTiO3 (PMN-31%PT) has been investigated. PMN-31%PT single crystals were treated using the general sample-preparation methods of mechanical polishing and Ar-ion milling. Similar domain structures were artificially induced in both the mechanically polished and the Ar-ion milled PMN-31%PT; this domain structure was not observed in the original PMN-31%PT single crystal. Macroscopic structural investigation using X-ray diffraction showed that these general sample-preparation methods induce a structural change from a monoclinic-like to a tetragonal-like structure. A study of local symmetry also indicated that Ar-ion milling induces a structural change from the original monoclinic-like crystal symmetry to a tetragonal-like crystal symmetry. It is also demonstrated that the conventional sample-preparation methods induce a poling-like effect on PMN-31%PT.",

keywords = "convergent-beam electron diffraction, relaxor-based ferrroelectrics, sample preparation, symmetry investigation, symmetry quantification",

author = "Jongchul Jeon and {Ju Oh}, Soong and Kim, {Kyou Hyun}",

note = "Funding Information: This work was supported by a research fund from the Korea Institute of Industrial Technology (KITECH).",

year = "2020",

month = apr,

day = "1",

doi = "10.1107/S1600576720001235",

language = "English",

volume = "53",

pages = "381--386",

journal = "Journal of Applied Crystallography",

issn = "0021-8898",

publisher = "International Union of Crystallography",

}

TY - JOUR

T1 - Effect of sample-preparation history on domain and crystal structure in a relaxor-ferroelectric single crystal

AU - Jeon, Jongchul

AU - Ju Oh, Soong

AU - Kim, Kyou Hyun

N1 - Funding Information: This work was supported by a research fund from the Korea Institute of Industrial Technology (KITECH).

PY - 2020/4/1

Y1 - 2020/4/1

N2 - The effect of sample-preparation procedures on single crystals of the relaxor-based ferroelectric Pb(Mg1/3Nb2/3)O3-31%PbTiO3 (PMN-31%PT) has been investigated. PMN-31%PT single crystals were treated using the general sample-preparation methods of mechanical polishing and Ar-ion milling. Similar domain structures were artificially induced in both the mechanically polished and the Ar-ion milled PMN-31%PT; this domain structure was not observed in the original PMN-31%PT single crystal. Macroscopic structural investigation using X-ray diffraction showed that these general sample-preparation methods induce a structural change from a monoclinic-like to a tetragonal-like structure. A study of local symmetry also indicated that Ar-ion milling induces a structural change from the original monoclinic-like crystal symmetry to a tetragonal-like crystal symmetry. It is also demonstrated that the conventional sample-preparation methods induce a poling-like effect on PMN-31%PT.

AB - The effect of sample-preparation procedures on single crystals of the relaxor-based ferroelectric Pb(Mg1/3Nb2/3)O3-31%PbTiO3 (PMN-31%PT) has been investigated. PMN-31%PT single crystals were treated using the general sample-preparation methods of mechanical polishing and Ar-ion milling. Similar domain structures were artificially induced in both the mechanically polished and the Ar-ion milled PMN-31%PT; this domain structure was not observed in the original PMN-31%PT single crystal. Macroscopic structural investigation using X-ray diffraction showed that these general sample-preparation methods induce a structural change from a monoclinic-like to a tetragonal-like structure. A study of local symmetry also indicated that Ar-ion milling induces a structural change from the original monoclinic-like crystal symmetry to a tetragonal-like crystal symmetry. It is also demonstrated that the conventional sample-preparation methods induce a poling-like effect on PMN-31%PT.

KW - convergent-beam electron diffraction

KW - relaxor-based ferrroelectrics

KW - sample preparation

KW - symmetry investigation

KW - symmetry quantification

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JO - Journal of Applied Crystallography

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