Abstract
Cyclotron Resonance measurements on accumulation-layer electrons at anodic oxide films on n-(Hg,Cd)Te are reported. Up to six subband cyclotron resonances are observed and discontinuities are seen in the subband effective masses, due to resonant polaron effects. The coupling is strongest for the higher subbands, where it is enhanced over that for the bulk, and occurs at the “HgTe-like” LO phonon frequency. The behaviour of the lowest (i=0,1) subbands is more complex, with the coupling being weaker and the dominant interaction seeming to occur at the TO frequency for low values of N S.
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