Browsing Natural Sciences by Author "Chinyama, Godfrey Kaumba."

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A study of the electronic and thermal strains in direct and indirect band-gap semiconductors by the use of photoacoustic spectroscopy

Chinyama, Godfrey Kaumba. (2012-08-01)

When a modulated beam of 1ight impinges on a solid, elastic waves are produced as a result o-f the surface motion due to thermal expansion. In semiconductors, in addition to this thermal expansion effect, there is also ...