Abstract
The subband levels of quantum wells grown in a periodic array form minibands whose bandwidth $\ensuremath{\Delta}$ depends on the probability of interlayer tunneling. In the presence of a strong magnetic field, this system of minibands can exhibit various Coulomb-interaction-driven spin polarization instabilities at an integral value of the filling factor $\ensuremath{\nu}.$ We investigate in particular the Hartree-Fock phase diagram in the case in which the $n=0$ spin-up and $n=1$ spin-down Landau levels are separated by an energy smaller than $\ensuremath{\Delta}.$ A spin-density-wave ground state is shown to occur at filling factor $\ensuremath{\nu}=2.$
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
