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Raman scattering of ytterbium intercalated C 60 compounds
Author(s) -
Cao Xuewei,
Wang Yufang,
Hao Jianmin,
Liu Jianjun,
Hu Shifen,
Lan Guoxiang
Publication year - 2000
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/1097-4555(200006)31:6<461::aid-jrs552>3.0.co;2-y
Subject(s) - raman spectroscopy , raman scattering , ytterbium , amorphous solid , phonon , analytical chemistry (journal) , phase (matter) , chemistry , materials science , molecule , crystallography , condensed matter physics , optics , doping , optoelectronics , physics , organic chemistry
Experiment results on Raman spectra of Yb x C 60 ( x = 1–6) taken at room temperature are presented and discussed. In the nominal composition Yb 3 C 60 superconducting phase, the broadening of Raman lines was observed due to electron–phonon interaction. In high Yb concentration, Yb x C 60 ( x ≥ 4) Raman lines are broadened severely, this behaviour indicates that the C 60 molecules are distorted strongly. However, when Yb x C 60 samples are exposed to air, this distortion decreases considerably, although the fulleride solids have transformed into an amorphous phase. Copyright © 2000 John Wiley & Sons, Ltd.