SPIN-POLARIZED HIGH BRIGHTNESS ELECTRON GENERATING PHOTOCATHODE AND METHOD FOR MANUFACTURING FOR SAME

摘要

[Problem] The objective of the present invention is to provide a spin-polarized high brightness electron generating photocathode for backside illumination which has a simple construction, and to provide a method for manufacturing the same.[Solution] A thin film of a single-crystal compound semiconductor having negative electron affinity (NEA) is caused to form on a single-crystal substrate having nanometer surface flatness. This spin-polarized high brightness electron generating photocathode can be manufactured by metal-organic vapor phase epitaxy.