Electron cyclotron mass in undoped CdTe/CdMnTe quantum wells

Details Electron cyclotron mass in undoped CdTe/CdMnTe quantum wells Electron cyclotron mass in undoped CdTe/CdMnTe quantum wells

2005-01-21

arxiv.org/abs/cond-mat/0501516v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.72.195337

Optically detected cyclotron resonance of two-dimensional electrons has been studied in nominally undoped CdTe/(Cd,Mn)Te quantum wells. The enhancement of carrier quantum confinement results in an increase of the electron cyclotron mass from 0.099$m_0 $ to 0.112$m_0 $ with well width decreasing from 30 down to 3.6 nm. Model calculations of the electron effective mass have been performed for this material system and good agreement with experimental data is achieved for an electron-phonon coupling constant $\alpha $=0.32.

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