Magneto‐optical spectroscopy of gated p‐doped CdMnTe quantum wells | Zendy

Boukari H. | Zendy; Bertolini M. | Zendy; Ferrand D. | Zendy; Cibert J. | Zendy; Tatarenko S. | Zendy; Kossacki P. | Zendy; Gaj J. A. | Zendy

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Magneto‐optical spectroscopy of gated p‐doped CdMnTe quantum wells

Author(s) -

Boukari H.,

Bertolini M.,

Ferrand D.,

Cibert J.,

Tatarenko S.,

Kossacki P.,

Gaj J. A.

Publication year - 2004

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200304222

Subject(s) - trion , zeeman effect , photoluminescence , condensed matter physics , spectroscopy , exciton , chemistry , energy level splitting , population , quantum well , doping , physics , magnetic field , atomic physics , optoelectronics , optics , laser , demography , quantum mechanics , sociology

We describe the magneto‐photoluminescence of (Cd,Mn)Te/(Cd,Zn,Mg)Te quantum wells containing a 2D hole gas . The hole population can be tuned either optically in p‐i‐p structures, by above barrier illumination, or electrically by applying a bias voltage of a few volts on a p‐i‐n structure. We identify the photoluminescence at low field as due to the positively charged exciton X + , which is destabilized at a given value of the Zeeman splitting, due to its crossing with a state involving a triplet configuration of the trion hole pair. The X + looses its intensity in favor of a double line which exhibits features associated to band‐to‐band transitions at k = 0 and k = k F (wave vector at Fermi energy). (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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