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Evidence of non-vanishing excitonic correlation near the exciton Mott transition in Si revealed by THz time domain spectroscopy

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Abstract

We investigate the Coulomb correlation in electron-and-hole system in Si using optical-pump-terahertz-probe spectroscopy. Excitonic correlation is observed even above the Mott density accompanied by coupled behavior of plasmon and exciton.

© 2012 Optical Society of America

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