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Magneto-Optical Studies of Narrow Band-Gap Heterostructures with Type II Quantum Dots InSb in an InAs Matrix

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Mukhin M., Terent'ev Y., Golub L., Nestoklon M., Meltser B., Semenov A., Solov'ev V., Sitnikova A., Toropov A., Ivanov S.

Acta Physica Polonica A

2011

vol. 120

issue 5

868-869

Magneto-optical properties of type II heterostructures with InSb/InAs quantum dots has been studied at external magnetic field applied in the Faraday geometry. The emission polarization degree can be changed in the range from 100% σ-minus to 10% σ-plus due to excitation intensity and temperature variation. The detailed calculation of the band structure within a tight-binding approximation is presented. The simulation of the experimental data reveals that the oscillator strength of the optical transitions involving electrons with the spin oriented along and opposite to the magnetic field vector differs by approximately 1.8 times in the heterostructures under study.

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1 Acta Physica Polonica A

1 2011

1 Golub L.

1 Ivanov S.

1 Meltser B.

1 Mukhin M.

1 Nestoklon M.

1 Semenov A.

1 Sitnikova A.

1 Solov'ev V.

1 Terent'ev Y.

1 Toropov A.

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Magneto-Optical Studies of Narrow Band-Gap Heterostructures with Type II Quantum Dots InSb in an InAs Matrix