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Cd_{1-x}Mn_{x}Te Parabolic Quantum Wells

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Wojtowicz T., Kutrowski M., Cywiński G., Dynowska E., Karczewski G., Kossut J., Fiederling R., Mackh G., Zehnder U., Ossau W.

Acta Physica Polonica A

1996

vol. 90

issue 5

977-980

We report on the growth and optical studies of II-VI semiconductor parabolic quantum wells made of Cd_{1-x}Mn_{x}Te for a broad range of quantum well widths and Mn molar fractions x. Photoluminescence excitation spectra revealed several series of peaks equidistant in energy associated with interband optical transitions between harmonic oscillator levels. From the analysis of the spectra the valence band offset Q_{hh} = 0.44±0.1 was determined for the CdTe/Cd_{1-x}Mn_{x}Te system.

Half-Parabolic Quantum Wells of Diluted Magnetic Semiconductor Cd_{1-x}Mn_{x}Te

81%

Kutrowski M., Wojtowicz T., Cywiński G., Karczewski G., Janik E., Dynowska E., Kossut J., Kossacki P., Fiederling R., Pfeuffer-Jeschke A., Ossau W.

Acta Physica Polonica A

1997

vol. 92

issue 5

887-890

We report on magnetooptical studies of MBE-grown half-parabolic CdTe/Cd_{x}Mn_{1-x}Te quantum well structures. The value of the valence band offset Q_{v}=0.4 ± 0.05 was determined by comparing energies of optical transitions in the absence of a magnetic field with model calculations. This value was verified by fitting the observed spin splitting of the lowest heavy hole (hh) state. We discuss also the temperature dependence of Q_{v}.

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2 Acta Physica Polonica A

1 1997

1 1996

2 Cywiński G.

2 Dynowska E.

2 Fiederling R.

2 Karczewski G.

2 Kossut J.

2 Kutrowski M.

2 Ossau W.

2 Wojtowicz T.

1 Janik E.

1 Kossacki P.

1 Mackh G.

1 Pfeuffer-Jeschke A.

1 Zehnder U.

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Cd_{1-x}Mn_{x}Te Parabolic Quantum Wells

Half-Parabolic Quantum Wells of Diluted Magnetic Semiconductor Cd_{1-x}Mn_{x}Te