Equations of state of RbxC60 (x=3,4 and 6). - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2004

Equations of state of RbxC60 (x=3,4 and 6).

Résumé

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.
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Dates et versions

hal-00005761 , version 1 (01-07-2005)

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A. A. Sabouri-Dodaran., Massimiliano Marangolo, Ch. Bellin., Francesco Mauri, G. Fiquet ., et al.. Equations of state of RbxC60 (x=3,4 and 6).. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2004, 70, pp.174114. ⟨10.1103/PhysRevB.70.174114⟩. ⟨hal-00005761⟩
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