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The Yellow Excitonic Series of Cu2O Revisited by Lyman Spectroscopy

Abstract : We report on the observation of the yellow exciton Lyman series up to the fourth term in Cu2O by time-resolved mid-infrared spectroscopy. The dependence of oscillator strength on the principal quantum number n can be well reproduced using the hydrogenic model including an AC dielectric constant, and precise information on the electronic structure of the 1s exciton state can be obtained. A Bohr radius a1s=7.9 Å and a 1s–2p transition dipole moment µ1s–2p=4.2 eÅ were found.
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Contributor : Aurélien Houard Connect in order to contact the contributor
Submitted on : Saturday, March 13, 2010 - 1:39:40 AM
Last modification on : Friday, December 3, 2021 - 11:34:03 AM

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Takeshi Tayagaki, André Mysyrowicz, Makoto Kuwata-Gonokami. The Yellow Excitonic Series of Cu2O Revisited by Lyman Spectroscopy. Journal of the Physical Society of Japan, Physical Society of Japan 日本物理学会, 2005, 74, pp.1423-1426. ⟨10.1143/JPSJ.74.1423⟩. ⟨hal-00463618⟩



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