Affiliation: | (1) Department of Physics, Cochin University of Science and Technology, 682 022 Cochin, India;(2) Department of Applied Chemistry and Molecular Science, Faculty of Engineering, Iwate University, Ueda 4-3-0, 020 Morioka, Japan;(3) Chemical Division, Iwate Industrial Research Institute, Tioka-Shinden, 020 Morioka, Japan;(4) Department of Electrical and Electronic Engineering, Faculty of Engineering, Iwate University, 020 Morioka, Japan |