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 reported in the literature for weak fields for all excited subband states is an artifact of using infinite-barrier model. Our numerical work gives results in 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.

العنوان

Solid State Communications (Impact Factor: 1.7). 06/1991; 78(11).

الناشر

--

بلد الناشر

فلسطين

نوع المنشور

Both (Printed and Online)

المجلد

--

السنة

1991

الصفحات

--