SORPTION OF HELIUM BY FULLERITE CRYSTALS AND FILMS

被引：23

作者：

CHEN, CP ^{[1
]}

MEHTA, S ^{[1
]}

FU, LP ^{[1
]}

PETROU, A ^{[1
]}

GASPARINI, FM ^{[1
]}

HEBARD, A ^{[1
]}

机构：

[1] AT&T BELL LABS, MURRAY HILL, NJ 07974 USA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.71.739

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report sorption isotherms and optical measurements for fullerite C60/C70 crystals and C60 films exposed to helium. The low temperature isotherms show excess sorption above that expected for surface films. We interpret this as intercalation of helium in the fullerite lattice. Our observations suggest that helium is mobile within the crystal, and opens up the possibility of realizing a new type of three-dimensional quantum fluid. Raman measurements are inconclusive on the issue of intercalation.

引用

页码：739 / 742

页数：4

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