Affiliation: | aDepartment of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan;bThe Research Institute for Molecular Electronic Devices, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan;cElectronic Materials Department, Osaka Municipal Technical Research Institute, Osaka 536-8553, Japan;dHigh Technology Research Center, Osaka Sangyo University, Daito, Osaka 574-0013, Japan |