ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
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), energydispersive X-ray spectroscopy (EDS), differential scanning calorimeter (DSC) were used to characterizethe crystals, respectively. The results show that large and well-crystallized single crystals can be preparedunder optimum synthesis condition. The composition of the crystals is in good agreement with thenominal composition (M8Ga16Ge30, M=Sr, Ba). Raman spectra of the single crystals were studied at roomtemperature and several of the Raman active vibrational modes in the crystals have been identified
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.896.pdf
Permalink