Paper Title:
Preparation and Characterization of Sr, Ba Filled Type-I Ge Clathrate Single Crystals
  Abstract

Sr or Ba filled type-I Ge clathrate single crystals were prepared using high pure elemental Ga, Ge, and Sr or Ba as the starting materials, and Ga as a flux. Powder X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), differential scanning calorimeter (DSC) were used to characterize the crystals, respectively. The results show that large and well-crystallized single crystals can be prepared under optimum synthesis condition. The composition of the crystals is in good agreement with the nominal composition (M8Ga16Ge30, M=Sr, Ba). Raman spectra of the single crystals were studied at room temperature and several of the Raman active vibrational modes in the crystals have been identified.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
896-899
DOI
10.4028/www.scientific.net/KEM.336-338.896
Citation
K. F. Cai, L.C. Zhang, Q. Lei, "Preparation and Characterization of Sr, Ba Filled Type-I Ge Clathrate Single Crystals", Key Engineering Materials, Vols. 336-338, pp. 896-899, 2007
Online since
April 2007
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