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Thermally Stimulated Exoelectron Emission of Evaporated LiF Films

The authors would like to thank Mr. M. 
Fujisawa of Synchrotron Radiation Laboratory 
of IS SP, University of Tokyo for reflectivity 
measurements, Prof. T. Saito, Tokyo University 
of Agriculture and Technology, for ellipsometry 
measurements, and Stanley Electric Co., Ltd. for 
EPMA measurements. This work has been partly 
supported by the financial contribution from 
Nippon Steel Co., Ltd.