High pressure study of the 2D polymeric phase of C60 by means of Raman spectroscopy

被引：1

作者：

Arvanitidis, J

Meletov, KP

Kourouklis, GA

Papagelis, K

Soldatov, A

Prassides, K

Ves, S ^{[1
]}

机构：

[1] Aristotelian Univ Salonika, Dept Phys, GR-54006 Salonika, Greece

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

[3] Aristotelian Univ Salonika, Sch Technol, Div Phys, GR-54006 Salonika, Greece

[4] Univ Sussex, Sch Chem Phys & Environm Sci, Brighton BN1 9QJ, E Sussex, England

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

来源：

HIGH PRESSURE RESEARCH | 2000年 / 18卷 / 1-6期

关键词：

fullerenes; 2D tetragonal polymer; Raman spectroscopy; high pressure;

D O I：

10.1080/08957950008200961

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of high hydrostatic pressure, up to 12 GPa, on the intramolecular phonon frequencies and the material stability of the two-dimensional tetragonal C-60 polymer has been studied by means of Raman spectroscopy in the spectral range of the radial intramolecular modes (200-800 cm(-1)). A number of new Raman modes appear in the spectrum for pressures similar to 1.4 and similar to 5.0 GPa. The pressure coefficients for the majority of the phonon modes exhibit changes to lower values at P=4.0 GPa, which may be related to a structural modification of the 2D polymer to a more isotropic phase. The peculiarities observed in the Raman spectra are reversible and the material is stable in the pressure region investigated.

引用

页码：145 / 151

页数：7

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