INFRARED AND DIFFERENTIAL-SCANNING-CALORIMETRY STUDY OF THE ROOM-TEMPERATURE CUBIC PHASE OF RBC60

被引：14

作者：

KAMARAS, K

GRANASY, L

TANNER, DB

FORRO, L

机构：

[1] UNIV FLORIDA,DEPT PHYS,GAINESVILLE,FL 32611

[2] ECOLE POLYTECH FED LAUSANNE,DEPT PHYS,CH-1015 LAUSANNE,SWITZERLAND

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.52.11488

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present differential-scanning-calorimetry curves and infrared spectra taken during the temperature cycling of stoichiometrically pure RbC60 powder. In addition to the three known phases (high-temperature fcc, ortho-I, and ortho-II), we see evidence for an intermediate structure around 300 K, observed previously by ESR and x-ray diffraction. This phase is obtained both by quenching from high temperature and by warming up the ortho-II structure. Its infrared spectrum is identical to that of the high-temperature fcc phase, indicating a structure containing C-60(-) monomers.

引用

页码：11488 / 11491

页数：4

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