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Charged excitons in semiconductors

Заряженные экситоны в полупроводниках

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Il Nuovo Cimento B (1971-1996)

Summary

It is shown that there may exist stable three-particle bound states—the charged excitons—for all values of the effective-mass ratio. The full band structure and the electron-hole exchange interaction are taken into account. In a first step, we restrict ourselves to the case of the copper halides CuCl and CuBr, in which the most stable charged-exciton states are expected.

Riassunto

Si mostra che possono esistere stati legati stabili a tre particelle—gli eccitoni carichi—per tutti i valori del rapporto della massa efficace. Si prendono in considerazione la completa struttura della banda e l’interazione di scambio elettrone-buca. Come primo passo ci limitiamo al caso degli alogenuri di rame CuCl e CuBr in cui ci si aspetta di trovare i più stabili stati di eccitone carico.

Резюме

Показывается, что могут существовать устойчивые трехчастичные связанные состояния—заряженные экситоны—для всех величин отношения эффективных масс. При рассмотрении учитывается полная зонная структура и электрон-дырочное обменное взаимодействие. Мы ограничиваемся исследованием CuCl и CuBr, в которых ожидаются наиболее устойчивые состояния заряженных экситонов.

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Footnotes

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Stebe, B., Comte, C. & Munschy, G. Charged excitons in semiconductors. Nuov Cim B 39, 507–512 (1977). https://doi.org/10.1007/BF02725784

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  • DOI: https://doi.org/10.1007/BF02725784

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