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1969
DOI: 10.1103/physrevlett.22.94
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Mechanism of Absorption of Light by Free Continuum Polarons

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Cited by 107 publications
(114 citation statements)
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“…Upon cooling, the maximum of this band remains between 200 and 350 meV, and at 7K an additional peak emerges on the low-energy side with a maximum varying from 120 (0.1%) to 140 meV (2%). Devreese et al [25,26,27] have numerically found a broad mid-infrared band with (for intermediate couplings) a peak at lower energies. They explain it as a multiphonon band and the peak as a relaxed state of an electron optically excited within the polaronic potential well.…”
Section: Figmentioning
confidence: 99%
“…Upon cooling, the maximum of this band remains between 200 and 350 meV, and at 7K an additional peak emerges on the low-energy side with a maximum varying from 120 (0.1%) to 140 meV (2%). Devreese et al [25,26,27] have numerically found a broad mid-infrared band with (for intermediate couplings) a peak at lower energies. They explain it as a multiphonon band and the peak as a relaxed state of an electron optically excited within the polaronic potential well.…”
Section: Figmentioning
confidence: 99%
“…Decay rates of excited states are severely underestimated in the one-phonon approximation [6,10]. We may not rule out the possibility that at larger values of α sharp peaks do appear in OC.…”
mentioning
confidence: 99%
“…In contrast, the experimental data on optical conductivity (OC) spectra, σ βδ (ω), are readily available, but most theoretical methods can not well treat the excited states, and, as a result, are less accurate in predicting σ(ω). For decades, going back to early papers [2,3,4], the polaron OC (especially within the Fröhlich model [5,6,7,8]) constantly attracts attention of theoretical community.…”
mentioning
confidence: 99%
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“…В некоторых теориях ОП поляронов, например [9,10], обычно имеется некая бесфононная линия при неко-торой энергии E 0 (не всегда наблюдаемая в экспери-ментах) и фононная структура (пики или ступеньки), подчиняющиеся формуле E = E 0 + n · E p . Отличитель-ной особенностью теории [6] является E 0 = 0.…”
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