ON THE STABILITY OF A WANNIER EXCITON IN A POLAR CRYSTAL | Zendy

GU SHI-WEI | Zendy; Liang Xi-Xia | Zendy

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ON THE STABILITY OF A WANNIER EXCITON IN A POLAR CRYSTAL

Author(s) -

GU SHI-WEI,

Liang Xi-Xia

Publication year - 1981

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.30.281

Subject(s) - exciton , hamiltonian (control theory) , polar , wannier function , physics , biexciton , ground state , electron , condensed matter physics , free electron model , effective mass (spring–mass system) , atomic physics , quantum mechanics , mathematical optimization , mathematics

In this paper, the ground state energy of a wannier exciton is calculated by means of the effective Hamiltonian obtained by one of the authors. It is shown that there is a range of values of the electron-tohole mass ratio a, for which the exciton. is stable with respect to dissociation into a free electron and a free hole.

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