|
Takada
has developed a new method [1] to treat nonparabolicity
of the conduction bands in order to obtain
electronic structures [2,3] as well as optical absorption spectra [4] in
the inversion layers
formed on the surface of narrow-gap semiconductors
such as InSb
and Hg1-xCdxTe.
Since electrons occupy two or more subbands in the system, there exists
a possibility to observe excitations of acoustic
plasmons [5].
Occupation of multiple subbands is also possible in the inversion layers on the suface of Si under the uniaxial stress. The electronic structure, the transport properties, and the cyclotron resonance are considered in the system [6-8]. |