Photoacoustic investigations on the critical composition in Ge-As-Te glasses
作者： A. Srinivasan , K. N. Madhusoodanan , E. S. R. Gopal , J. Philip
DOI: 10.1080/13642819208223049
关键词: Photoacoustic spectroscopy 、 Thermal diffusivity 、 Photoacoustic imaging in biomedicine 、 Coordination number 、 Analytical chemistry 、 Composition (combinatorics) 、 Chemistry
摘要: Abstract The optical band-gap (Eo ) and thermal diffusivity (α) of bulk Ge7-5AsxTe92-x (x = 20, 40, 45, 50, 55) Ge10AsxTe90-x (x= 15, 35, 50) glasses have been determined by the photoacoustic spectroscopy technique. behaviour Eo a explained on basis network topology, in terms mean coordination number 〈r〉. α values both sets show subtle features at 〈r〉 2.6 indicating occurrence threshold this value
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