Hydrostatic pressure, temperature and aluminum concentration effects on the ground state of coupled donors in a GaAs–Ga 1− x  Al  x  As quantum well | Zendy

Fulla M. R. | Zendy; Suaza Y. A. | Zendy; Marín J. H. | Zendy

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Hydrostatic pressure, temperature and aluminum concentration effects on the ground state of coupled donors in a GaAs–Ga 1− x Al x As quantum well

Author(s) -

Fulla M. R.,

Suaza Y. A.,

Marín J. H.

Publication year - 2015

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.201451407

Subject(s) - hydrostatic pressure , binding energy , hydrostatic equilibrium , ground state , aluminium , chemistry , quantum , nucleus , atomic physics , thermodynamics , physics , quantum mechanics , organic chemistry , biology , microbiology and biotechnology

The combined effects of hydrostatic pressure, temperature, and aluminum concentration on the binding and total energies of two coupled donorsD 2 +are analyzed using a variational procedure. The effects of changing the nucleus–nucleus relative positions and the quantum well size on theD 2 +complex binding energy were also analyzed. The results show that an increase in the temperature yields a decrease of theD 2 +binding energy while an increase in the aluminum concentration or hydrostatic pressure, enhance theD 2 +binding energy favoring the stability ofD 2 +molecular complex under strong quantum confinement conditions.

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