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Phys. Rev. B 67, 033306 (2003) [4 pages]

Influence of the coupling between center of mass and internal degrees of freedom on the binding energy of magnetotrions

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Luis C. O. Dacal1 and José A. Brum1,2
1IFGW-DFMC, Universidade Estadual de Campinas, Caixa Postal 6165, 13083-970, Campinas-SP, Brazil
2Laboratório Nacional de Luz Síncrotron-ABTLuS, Caixa Postal 6192, 13084-971, Campinas-SP, Brazil

Received 1 April 2002; revised 17 September 2002; published 27 January 2003

We present the effects of the center-of-mass dynamics on the negatively charged exciton bound states in the presence of longitudinal magnetic and electric fields. We consider an idealized GaAs/Al0.3Ga0.7As quantum well in the low-field limit and use the configuration interaction method to build up the two-particle basis set. Our results show that the dynamics of the charged exciton center of mass has to be taken into account for a realistic description of the bound states.


©2003 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevB.67.033306
DOI: 10.1103/PhysRevB.67.033306
PACS: 73.21.Fg, 78.67.De

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