Amplification of acoustic waves due to an external temperature gradient in super lattices

dc.contributor.author	Mensah, S Y
dc.contributor.author	Kangah, G K
dc.date.accessioned	2021-10-04T11:26:34Z
dc.date.available	2021-10-04T11:26:34Z
dc.date.issued	1991
dc.identifier.issn	23105496
dc.identifier.uri	http://hdl.handle.net/123456789/6113
dc.description	4p:, ill.	en_US
dc.description.abstract	Amplification of short-wave sound propagating along the axis of a semiconductor super lattice by electrons of the lowest mini band in an external temperature gradient is investigated theoretically. The mechanism of absorption of phonons is due to Landau damping. Unlike a homogeneous material, the threshold field at which absorption turns over to amplification depends on the super lattice parameters and the wavelength of the sound wave	en_US
dc.language.iso	en	en_US
dc.publisher	University of Cape Coast	en_US
dc.title	Amplification of acoustic waves due to an external temperature gradient in super lattices	en_US
dc.type	Article	en_US