High-pressure-induced metastable phase in tetragonal 2D polymeric C60

被引：36

作者：

Meletov, KP ^{[1
]}

Assimopoulos, S

Tsilika, I

Kourouklis, GA

Arvanitidis, J

Ves, S

Sundqvist, B

Wågberg, T

机构：

[1] Aristotelian Univ Thessaloniki, Sch Technol, Div Phys, GR-54006 Thessaloniki, Greece

[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow, Russia

[3] Aristotelian Univ Thessaloniki, Dept Phys, GR-54006 Thessaloniki, Greece

[4] Umea Univ, Dept Expt Phys, S-90187 Umea, Sweden

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 341卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(01)00512-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The structural stability of the tetragonal two-dimensional (2D) polymeric phase of C-60 has been studied under pressure up to similar to 24 GPa and room temperature by means of in situ Raman scattering. An irreversible transformation of the material to a new phase was observed at pressure similar to 20 GPa. The phonon spectrum of the high-pressure phase provides a strong indication that the fullerene molecular cage is retained and therefore this phase may be related to a three-dimensional (3D) network of C-60 cages. The new phase remains stable upon slow release of pressure to ambient conditions. The recovered material is metastable and transforms in air by detonation under laser irradiation to partially dimerized C-60 (C) 2001 Elsevier Science B.V. AH rights reserved.

引用

页码：435 / 441

页数：7

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