Raman scattering investigation of Y1-xCaxTiO3
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ID | 18721 |
本文ファイル | |
著者 |
Tsurui, Takao
Tsubota, Masami
Iga, Fumitoshi
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抄録(英) | Raman scattering spectra of single crystalline Y12xCaxTiO3 (x=0, 0.10, 0.30, 0.37, 0.38, and 0.41) have been systematically studied in the temperature region from 298 to 8 K. The structural transition from the orthorhombic phase to the monoclinic one occurs below 200 K in x<0.38. The intensity increase, related to the metal-insulator transition, has been observed below 100 K in Y0.62Ca0.38TiO3 . The phase separation from the monoclinic phase to the metallic orthorhombic and insulating monoclinic phase occurs below the metalinsulator transition temperature (TMI) in Y0.62Ca0.38TiO3 . The intensity-increase is explained by the appearance of the orthorhombic structure below TMI and its anisotropic appearance is related to the random orientation of the principle axes of the orthorhombic grain.
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掲載誌名 |
Physical Review B - Condensed Matter and Materials Physics
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巻 | 69巻
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号 | 2号
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開始ページ | 024102-1
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終了ページ | 024102-8
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出版年月日 | 2004-01-14
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出版者 | American Physical Society
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ISSN | 0163-1829
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NCID | |
出版者DOI | |
言語 |
英語
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NII資源タイプ |
学術雑誌論文
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広大資料タイプ |
学術雑誌論文
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DCMIタイプ | text
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フォーマット | application/pdf
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著者版フラグ | publisher
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権利情報 | Copyright (c) 2004 American Physical Society.
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関連情報URL | |
部局名 |
先端物質科学研究科
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