We have demonstrated Physics for which we need to modify boundary
condition to be used in matching solutions of Schroedinger equation
at finite potential discontinuities i.e. at interfaces between
barrier and quantum well materials, because of difference of
effective mass of electron in their conduction bands. Using the
modified boundary condition, we have presented thorough and
complete analytical calculation of transmission coefficient of
nanostructures called single rectangular tunnel barrier and
symmetric rectangular double barrier. We have presented numerical
investigations for the two nanostructures. We find that parametric
dependences of energy of resonant transmission peaks of the double
barrier do not change qualitatively because of taking effective
mass inequality into account; but we find changes in energy and in
full width at half maxima (FWHM) of the resonant peaks. The book is
self contained; it contains necessary Nanostructure Physics,
Microelectronics and Quantum Mechanics to enable interested reader
assimilate the book completely.
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