| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-09-12 |
| タイトル |
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タイトル |
Two types of cubic components coexisting in the paraelectric phase of relaxor ferroelectric Pb(Mg1/3Nb2/3)O3 revealed by synchrotron radiation X-ray diffraction |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Sakaguchi Kayoko
Kim Sangwook
Ohwa Hidehiro
Ohwada Kenji
Oshime Norihiro
Tsukada Shinya
Yoshihiro Kuroiwa
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The crystal structures of relaxor ferroelectric Pb(Mg1/3Nb2/3)O3 (PMN) have been investigated using synchrotron radiation X-ray powder diffraction. Two different types of cubic components coexist in the paraelectric phase at 600 K. The first is Cubic-I, in which the Pb ion is isotropically off-centered from the corner of the perovskite-type unit cell. The other, Cubic-II, has the Pb ion preferentially off-centered in the <111> directions from the corner. The volume fractions of Cubic-I and Cubic-II are approximately 83% and 17%, respectively. Previous studies have shown that only approximately 20% of PMN transitions to a rhombohedral structure at 100 K. This observation suggests a close relationship between Cubic-II and the rhombohedral structure at low temperatures. The intrinsic structural inhomogeneity observed in the paraelectric phase, such as variations in the disordering behavior of Pb ions, is potentially linked to the relaxor characteristics of PMN. |
| 書誌情報 |
Japanese Journal of Applied Physics
巻 63,
号 8,
p. 08SP14,
発行日 2024-09
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| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
ISSN: 1347-4065 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
DOI 10.35848/1347-4065/ad6a6b |
