Asymmetric versus symmetric $HgTe/C{\mathrm{d}}_{\mathrm{x}}\mathrm{H}{\mathrm{g}}_{1-\mathrm{x}}\mathrm{Te}$ double quantum wells: Band gap tuning without electric field

Dušan B. Topalović, Vladimir V. Arsoski, Milan Ž. Tadić +1

We investigate the electron states in double asymmetric $HgTe/C{\mathrm{d}}_{\mathrm{x}}\mathrm{H}{\mathrm{g}}_{1-\mathrm{x}}\mathrm{Te}$ quantum wells grown along the $[001]$ direction. The subbands are computed by means of the enve…