Prefer a chat interface with context about you and your work?
Large splitting of the cyclotron-resonance line in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Al</mml:mi></mml:mrow><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Ga</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi>−</mml:mi><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mi mathvariant="normal">N</mml:mi><mml:mo>/</mml:…
Cyclotron-resonance (CR) measurements on two-dimensional (2D) electrons in ${\mathrm{Al}}_{x}{\mathrm{Ga}}_{1\ensuremath{-}x}\mathrm{N}/\mathrm{G}\mathrm{a}\mathrm{N}$ heterojunctions reveal large splittings (up to 2 meV) of the CR line for all investigated densities, ${n}_{2D},$ from 1 to $4\ifmmode\times\else\texttimes\fi{}{10}^{12}{\mathrm{cm}}^{\ensuremath{-}2}$ over wide ranges of magnetic field. The features resemble a level anticrossing and imply a strong interaction with an unknown …