科研之友
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摘要
In this experimental work a conception of the phonon spectra of the Hg1-xCdxTe(x=0.06-0.7) solid solution is presented which explains the presence of additional lines in the region 100-115 cm(-1). Data of the optical reflectivity measurements obtained in far and middle infrared regions for eleven compositions of these alloys in the temperature range from 20 to 293 K using the synchrotron radiation (DA Phi NE-LIGHT in LNF, Italy) as source are analyzed. Analyses were performed on samples of different types (n and p type) of conductivity as well as the temperature dependences of the line intensity under consideration in the region from 70 to 118 cm(-1). The model of two valley potential of the mercury atom in the Hg1-xCdxTe lattice is used for interpretation of the additional phonon modes.
- 出版日期2010-7-30
