INTERNATIONAL CENTRE FOR THEORETICAL PHYSIC

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Research Title: 
ELECTRON POLARIZATION IN A QUANTUM WELL WITH UNIFORM ELECTRIC FIEL
Authors: 
Khaled Ilawi
Authors: 
M. Tomak
Country: 
Trieste-Italy 10-1990
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Research Abstract: 
The polarization of a quantum electron confined in a one dimensional potential well in the presence of a uniform electric field is calculated numerically. It is shown that the negative polarization reportedi n the literature for weak fields for all excited subband states is an artifact of using infinite-barrier model. Our numerical work gives resultsi n agreement with previous calculations for the infinite-barrier potential but it yields positive polarization for all values of the applied field for finite-barrier case.