Plasmon-interband coupling in gallium compounds |
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Authors: | JE Rowe JC Tracy SB Christman |
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Institution: | Bell Laboratories, Murray Hill, New Jersey 07974, U.S.A. |
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Abstract: | Electro energy loss spectra have been measured for metallic Ga and the semiconductor compounds GaSb, GaAs, GaP and GaN. The intensity at the measured plasmon energy decreases with increasing ionicity of the compound semiconductor. This is explained by a simple model involving the coupling of plasmon oscillations and interband transitions. |
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