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Showing 1 to 6 of 6 for “"electron-hole liquid (EHL)"”.
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Interaction of Nonequilibrium Phonons With Electron-Hole Plasmas in Germanium (Liquid, Excitons, Phase Diagram)
… on the interaction of phonons and photo-excited electron-hole plasmas in Ge at low temperature. The first two studies involve the low temperature fluid phase known as the electron-hole liquid (EHL). The third study involves a wider range of temperatures and includes the higher temperature …
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Determination of the liquid-gas phase diagram for electrons and holes in germanium
The existence of the electron-hole gas (EHG) phase has been confirmed in Ge by direct observation and the phase diagram and critical point of the liquid-gas transition have been determined. The position of the metal-insulator transition has been estimated. The electron-hole 1iquid-EHG-exciton …
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Luminescence studies of the excitonic system in germanium: Phase properties and transport
… in Chapter II, examines the properties of the electron-hole liquid (EHL) phase as a function of <111>-uniaxial stress. The application of stress along a <111> axis greatly reduces the degeneracy of the conduction and valence bands, thereby reducing the stability of the EHL. This thesis reports …
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Interaction of non-equilibrium phonons with electron-hole plasmas in germanium
… on the interaction of phonons and photo-excited electron-hole plasmas in Ge at low temperature. The first two studies involve the low temperature fluid phase known as the electron-hole liquid (EHL). The third study involves a wider range of temperatures and includes the higher temperature …
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Luminescence studies of photoexcited electron-hole plasmas in silicon and germanium
… 2 and deals with the transport of photoexcited electron-hole plasma (Ef:JP} in Si following pulsed laser excitation at temperatures below 50 K. The goal here was to determine the rate at which the photoexcited carriers expand fran the excitation surface into the crystal and. to determine the …
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I. Excitonic phase diagram in Si: evidence for two condensed phases ; II. Motion of photoexcited carriers in GaAs/Alx̳Ga1̳-̳x̳As multiple quantum wells : anomalous confinement at high densities
… excitons in Si and Ge undergo a simultaneous gas-liquid and insulator-metal transition into droplets of electron-hole liquid. Some previous theoretical and experimental studies have suggested that, under certain values of density and temperature, there may be separate metal-insulator and …