Raman scattering investigation of Y1-xCaxTiO3

Physical Review B - Condensed Matter and Materials Physics 69 巻 2 号 024102-1-024102-8 頁 2004-01-14 発行
アクセス数 : 933
ダウンロード数 : 183

今月のアクセス数 : 4
今月のダウンロード数 : 4
ファイル情報(添付)
PhysRevB_69_024102.pdf 149 KB 種類 : 全文
タイトル ( eng )
Raman scattering investigation of Y1-xCaxTiO3
作成者
Tsurui Takao
Tsubota Masami
Iga Fumitoshi
収録物名
Physical Review B - Condensed Matter and Materials Physics
69
2
開始ページ 024102-1
終了ページ 024102-8
抄録
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.
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2004-01-14
権利情報
Copyright (c) 2004 American Physical Society.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0163-1829
[DOI] 10.1103/PhysRevB.69.024102
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.69.024102