Evidence for localized excitations in MgO from electron energy-loss spectroscopy |
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Authors: | V.E. Henrich G. Dresselhaus |
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Affiliation: | Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173, U.S.A. |
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Abstract: | The excited electronic states in the ionic crystal MgO have been studied by electron energy-loss spectroscopy. Structure observed above the thresholds for excitation from the Mg 2p, 2s and 1s core levels shows the final states to be predominantly excitonic levels of the Mg2+ ion. Comparison with the known states of the Mg2+ free ion indicates that solid-state shifts and splittings are small. |
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