Irreversible amorphization of tetragonal two-dimensional polymeric C60 under high pressure

被引：27

作者：

Léger, JM

Haines, J

Davydov, VA

Agafonov, V

机构：

[1] Univ Paris 13, Lab Proprietes Mecan & Thermodynam Mat, CNRS, UPR 9001, F-92190 Meudon, France

[2] Univ Montpellier 2, CNRS, Lab Phys Chim Mat Condensee, UMR 5617, F-34095 Montpellier 5, France

[3] RAS, Inst High Pressure Phys, Troitsk 142092, Moscow Region, Russia

[4] Univ Tours, Chim Phys Lab, EA 2098, PIMIR, F-37200 Tours, France

来源：

SOLID STATE COMMUNICATIONS | 2002年 / 121卷 / 05期

关键词：

fullerenes; phase transitions; strain; high pressure;

D O I：

10.1016/S0038-1098(01)00503-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The pressure dependence of the cell parameters of tetragonal two-dimensional polymeric C-60 has been determined by angle-dispersive, X-ray diffraction in a diamond anvil cell. The compression of the c parameter, the interlayer distance. is typical of a weak Van der Waals interaction. whereas the compression of the a parameter indicates strong covalent interactions, Amorphization was observed to occur gradually between 10 and 29 GPa when inter- and intra-layer distances become similar. No transition to another crystalline phase was observed up to 41 GPa or on decompression. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：241 / 244

页数：4

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