GAP REDUCTION AND THE COLLAPSE OF SOLID C-60 TO A NEW PHASE OF CARBON UNDER PRESSURE

被引：124

作者：

MOSHARY, F ^{[1
]}

CHEN, NH ^{[1
]}

SILVERA, IF ^{[1
]}

BROWN, CA ^{[1
]}

DORN, HC ^{[1
]}

DEVRIES, MS ^{[1
]}

BETHUNE, DS ^{[1
]}

机构：

[1] IBM CORP,ALMADEN RES CTR,SAN JOSE,CA 95129

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.69.466

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied solid C60, measuring the shift of the optical absorption edge with pressure to 35 GPa. In the range of 0-17 GPa, extrapolation of the absorption edge indicates that metallization should occur by 33 GPa. However, from 17 to 25 GPa an irreversible transition to a "transparent phase" occurs. Raman scattering of the depressurized sample shows no trace of C60, diamond, or graphite, indicating that the transition involves the collapse of the C60 molecules into a new structure of carbon.

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页码：466 / 469

页数：4

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