RAMAN FINE-STRUCTURE IN CRYSTALLINE C-60 - THE EFFECTS OF MEROHEDRAL DISORDER, ISOTOPIC-SUBSTITUTION, AND CRYSTAL-FIELD

被引：33

作者：

HOROYSKI, PJ ^{[1
]}

THEWALT, MLW ^{[1
]}

ANTHONY, TR ^{[1
]}

机构：

[1] GE CO,CTR CORP RES & DEV,SCHENECTADY,NY 12301

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.74.194

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Richly structured intramolecular vibrational modes of crystalline C60 are observed using high-resolution Fourier-transform Raman spectroscopy. The narrow linewidths of these modes, as small as 0.1 cm-1, reveal a wealth of detail below the 260 K fcc to sc transition. While clear evidence of crystal field splittings for both phases is observed, the majority of the low temperature splittings are unexpectedly found to result from the presence of merohedral disorder. Comparison of spectra from natural and C12 enriched samples reveals that isotopic effects play a minor role, except for the Ag(2) mode, which in the natural C samples has a complex structure quite different from that recently reported for isolated C60. © 1994 The American Physical Society.

引用

页码：194 / 197

页数：4

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