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Infrared and differential-scanning-calorimetry study of the room-temperature cubic phase of RbC60

Kamarás, Katalin and Gránásy, László and Tanner, D. B. and Forró, L. (1995) Infrared and differential-scanning-calorimetry study of the room-temperature cubic phase of RbC60. PHYSICAL REVIEW B CONDENSED MATTER AND MATERIALS PHYSICS, 52. pp. 11488-11491. ISSN 1098-0121

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Abstract

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.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika
Q Science / természettudomány > QC Physics / fizika > QC06 Physics of condensed matter / szilárdtestfizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 30 Jul 2013 14:11
Last Modified: 30 Jul 2013 14:11
URI: http://real.mtak.hu/id/eprint/6091

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