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Dependence of multiple Mn2+ spin-flip Raman scattering in quantum wells on the magnetic field direction


Reference:

Smith, L., Davies, J., Wolverson, D., Lentze, M., Geurts, J., Wojtowicz, T. and Karczewski, G., 2008. Dependence of multiple Mn2+ spin-flip Raman scattering in quantum wells on the magnetic field direction. Physical Review B, 77 (11), 115341.

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Official URL:

http://dx.doi.org/10.1103/PhysRevB.77.115341

Abstract

We show that the number nmax of simultaneous manganese paramagnetic resonance spin flips observed in the Raman spectra of a CdMnTe∕CdMnMgTe quantum well monotonically decreases as the angle between the external magnetic field and the quantum well growth axis is varied from 90° to 0°. The appearance of the multiple spin flips is due to precession of the manganese spins about the resultant field formed by combining the external magnetic field with the exchange field due to heavy-holes in the intermediate state of the scattering process. In our experiments, the exchange field is well defined and this has enabled us to provide a test of a model previously proposed for the process. We find good agreement between the experiment and the theoretical predictions.

Details

Item Type Articles
CreatorsSmith, L., Davies, J., Wolverson, D., Lentze, M., Geurts, J., Wojtowicz, T. and Karczewski, G.
DOI10.1103/PhysRevB.77.115341
DepartmentsFaculty of Science > Physics
RefereedYes
StatusPublished
ID Code21743

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