Parabolic-quantum-well self-consistent electronic structure in a longitudinal magnetic field: Subband depopulation

1989 ◽  
Vol 40 (14) ◽  
pp. 10048-10051 ◽  
Author(s):  
Michael P. Stopa ◽  
S. Das Sarma
1997 ◽  
Vol 11 (09) ◽  
pp. 1195-1207
Author(s):  
E. K. Takahashi ◽  
A. T. Lino ◽  
L. M. R. Scolfaro

Self-consistent calculations of the electronic structure of center n-δ-doped GaAs/Al x Ga 1-x As quantum wells under in-plane magnetic fields are presented. The field B is varied up to 20 Tesla for different quantum well widths L w and sheet donor concentrations N D . The magnetic field produces noticeable changes in the energy dispersions along an in-plane direction perpendicular to B. The effects of B are more pronounced for higher electronic subbands. It is found that the diamagnetic shifts increase with increasing L w and/or N D . Contrarily to what has been observed in modulation-doped quantum wells, in these δ-doped systems the electron energy dispersions keep the single conduction band minimum at the center of the Brillouin zone even for intense magnetic fields.


1993 ◽  
Vol 184 (1-4) ◽  
pp. 318-322 ◽  
Author(s):  
S.J. Lee ◽  
M.J. Park ◽  
G. Ihm ◽  
M.L. Falk ◽  
S.K. Noh ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document