Charge transfer excited states of hydroxyl ion impurities in alkali halide crystals |
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Authors: | Dong Ghie Chae B.G. Dick |
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Affiliation: | Department of Physics, University of Utah, Salt Lake City, Utah 84112, U.S.A. |
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Abstract: | A theoretical investigation of the u.v. absorption anisotropy factor g and the transition energies of OH? molecule in alkali halide crystals is presented in terms of a charge transfer model and the free OH? ground wave-function. Comparison of calculated and observed transition energies for OH? in KBr and NaCl shows reasonable agreement between theory and experiment. For KCl:OH?, a reasonable result for the transition energy is also obtained through a confinement of the free K4s function used for the one-electron transfer function. The model fails, however, to explain the value of about 0·3 for the anisotropy factor which is observed in a number of host crystals. |
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