Abstract:The variation of TO zone-center vibration spectra with concentration in mixed zincblende-type semiconductors can be understood within a paradigm of uni ed "one bond -two modes" approach, which has been recently outlined as a rather general concept, 1 and emerges from a number of previous experimental and theoretical studies. 2,3 The crucial issue is that the vibration frequency, associated with a certain cation-anion bond, depends on the length of the latter, and the bond length, in its turn, depends not only … Show more
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