1. Division of Frontier Materials Science; Graduate School of Engineering Science; Osaka University; Toyonaka Osaka 560-8531 Japan
2. Department of Applied Chemistry; School of Science and Technology; Meiji University; 1-1-1 Higashimita, Tama-ku Kawasaki 214-8571 Japan
3. Division of Chemical Engineering; Graduate School of Engineering Science; Osaka University; Toyonaka Osaka 560-8531 Japan
4. Center for Spintronics Research Network (CSRN); Graduate School of Engineering Science; Osaka University; Toyonaka Osaka 560-8531 Japan