Equations of state of RbxC60 (x=3, 4, and 6) -: art. no. 174114

被引：14

作者：

Sabouri-Dodaran, AA

Marangolo, M

Bellin, C

Mauri, F

Fiquet, G

Loupias, G

Mezouar, M

Crichton, W

Hérold, C

Rachdi, F

Rabii, S

机构：

[1] Univ Paris 06, CNRS, Lab Mineral & Cristallog, IPGP, F-75252 Paris 05, France

[2] Univ Paris 07, CNRS, Lab Mineral & Cristallog, IPGP, F-75252 Paris, France

[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[4] Univ Nancy 1, Lab Chim Solide Mineral, F-54506 Vandoeuvre Les Nancy, France

[5] Univ Montpellier 2, CNRS, UMR 5581, Grp Dynam Phases Condensees, F-34095 Montpellier 5, France

[6] Univ Penn, Dept Elect Engn, Philadelphia, PA 19104 USA

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.70.174114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The equations of state (EOS) of RbxC60 (x=3, 4, and 6) were determined by high pressure x-ray diffraction measurements. We focus on Rb4C60 since a Mott insulator-metal transition can be induced at around 0.8 GPa. We observed an abrupt jump in the compressibility of Rb4C60 between 0.5 GPa and 0.8 GPa which is attributed to a structural phase transition preserving the tetragonal symmetry. By ab initio calculations we are able to reproduce the experimental equations of state of RbxC60 (x=3,4). These calculations permit us to study the pressure dependence of the internal coordinates.

引用

页码：1 / 9

页数：9

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