磁気記録媒体用金属磁性粉の低エネルギー光電子放射測定法による耐候性の評価

抄録

The correlation between the anticorrosivity and the intensity of the low energy-photoelectron emission of metal iron particles for magnetic recording media was studied and we found that particles with higher anticorrosivity showed lower intensity in photoelectron emission. Particles treated with cis-1, 2-cyclohexyl-dicarboxylic acid showed a higher threshold for photoelectron emission than those without treatment. This higher threshold was explained by the formation of a surface potential barrier on the outer layer of γ-Fe₂O₃ by the anionic species of the acid