High-pressure diffraction studies on Ca2RuO4
Physical Review B - Condensed Matter and Materials Physics 72 巻 9 号
094104-1-094104-7 頁
2005-09-07 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
High-pressure diffraction studies on Ca2RuO4
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| 作成者 |
Steffens P.
Friedt O.
Alireza P.
Marshall William G.
Schmidt W.
Nakamura Fumihiko
Nakatsuji Satoru
Maeno Yoshiteru
Lengsdorf R.
Abd-Elmeguid Mohsen M.
Braden Markus
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| 収録物名 |
Physical Review B - Condensed Matter and Materials Physics
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| 巻 | 72 |
| 号 | 9 |
| 開始ページ | 094104-1 |
| 終了ページ | 094104-7 |
| 抄録 |
We studied the crystal and magnetic structure of Ca2RuO4 as function of pressure with different diffraction techniques. The first-order phase transition observed at a moderate pressure of P=0.5GPa between the insulating and the metallic high-pressure phase is characterized by a broad region of phase coexistence. The following structural changes are observed as function of pressure: (a) A discontinuous change of both the tilt and rotational angle of the RuO6-octahedra at this transition, (b) a gradual decrease of the tilt angle in the high-pressure phase (P>0.5GPa), and (c) the disappearance of the tilt above 5.5 GPa leading to a higher symmetry structure. The magnetism was studied by single-crystal neutron diffraction: The ferromagnetic component of the high-pressure phase and a rearrangement of antiferromagnetic order in the low-pressure phase have been observed.
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2005-09-07 |
| 権利情報 |
Copyright (c) 2005 American Physical Society.
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| 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] 1098-0121
[DOI] 10.1103/PhysRevB.72.094104
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.61.107
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