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
アクセス数 : 745
ダウンロード数 : 216

今月のアクセス数 : 4
今月のダウンロード数 : 0
ファイル情報(添付)
PhysRevB_72_094104.pdf 168 KB 種類 : 全文
タイトル ( eng )
High-pressure diffraction studies on Ca2RuO4
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
収録物名
Physical Review B - Condensed Matter and Materials Physics
72
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.
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2005-09-07
権利情報
Copyright (c) 2005 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] 1098-0121
[DOI] 10.1103/PhysRevB.72.094104
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.61.107