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Excitonic Giant Zeeman Effect in Wide Gap Diluted Magnetic Semiconductors Based on ZnO and GaN

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Pacuski W., Ferrand D., Kossacki P., Marcet S., Cibert J., Gaj J., Golnik A.

Acta Physica Polonica A

2006

vol. 110

issue 3

303-309

We present a theoretical description of the excitonic giant Zeeman effect observed in wide gap diluted magnetic semiconductors (Zn,Co)O and (Ga,Mn)N. In these materials, A and B excitons present quite complex energy shifts and change of oscillator strengths under magnetic field. These features can be well reproduced using an excitonic Hamiltonian, taking into account ion-carrier exchange, wurtzite trigonal crystal field, spin-orbit and electron-hole exchange interactions.

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1 Acta Physica Polonica A

1 2006

1 Cibert J.

1 Ferrand D.

1 Gaj J.

1 Golnik A.

1 Kossacki P.

1 Marcet S.

1 Pacuski W.

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Excitonic Giant Zeeman Effect in Wide Gap Diluted Magnetic Semiconductors Based on ZnO and GaN