Magneto-intersubband oscillations in two-dimensional systems with an energy spectrum split due to spin-orbit interaction
Year: 2020
Type: article
Abstract: In the present paper we study magneto-intersubband oscillations (MISO) in $\mathrm{HgTe}/{\mathrm{Hg}}_{1\ensuremath{-}x}{\mathrm{Cd}}_{x}\mathrm{Te}$ single quantum well with ``inverted'' and ``normal'' spectra and in ${\mathrm{In}}_{1\ensuremath{-}x}{\mathrm{Ga}}_{x}\mathrm{As}/{\mathrm{In}}_{1\ensuremath{-}y}{\mathrm{Al}}_{y}\mathrm{As}$ quantum wells with normal band ordering. For all the cases when two branches of the spectrum arise due to spin-orbit splitting, the mutual arrangement of the antinodes of the Shubnikov-de Haas oscillations and the maxima of MISO occurs opposite to that observed in double quantum wells and in wide quantum wells with two subbands occupied and does not agree with the theoretical predictions. A ``toy'' model is proposed that explains qualitatively this unusual result.
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W3015973454