IS C(60) FULLERITE HARDER THAN DIAMOND

被引：148

作者：

BLANK, V

POPOV, M

BUGA, S

DAVYDOV, V

DENISOV, VN

IVLEV, AN

MAVRIN, BN

AGAFONOV, V

CEOLIN, R

SZWARC, H

RASSAT, A

机构：

[1] RUSSIAN ACAD SCI,INST SPECTROSCOPY,TROITSK 142092,RUSSIA

[2] FAC PHARM TOURS,CHIM PHYS LAB,F-37042 TOURS,FRANCE

[3] UNIV PARIS 11,CHIM PHYS MAT AMORPHES LAB,F-91405 ORSAY,FRANCE

[4] ECOLE NORMALE SUPER,ACTIVAT MOLEC LAB,F-75231 PARIS,FRANCE

来源：

PHYSICS LETTERS A | 1994年 / 188卷 / 03期

关键词：

D O I：

10.1016/0375-9601(94)90451-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Raman spectra of C60 fullerite at pressures up to 3 7 GPa with shear deformation are studied. We have found two states at high pressures, that persist after pressure release and have various transparencies in the near IR region. The nontransparent state is formed at 6-18 GPa and has a Raman spectrum with broadened bands at frequencies close to those of the initial fullerite. The transparent state was obtained at pressures higher than 18 GPa, and the Raman bands are broadened and overlapping in comparison with those of the nontransparent state. We suppose that C60 molecules persist in both states. The transparent state of fullerite shows a hardness higher than that of diamond.

引用

页码：281 / 286

页数：6

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