Institution: | 1. Soft Innovative Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Bongdong‐eup Wanju‐gun, Jeonbuk, Korea;2. Department of Nanomaterials and Nano Science, Korea University of Science and Technology (UST), Daejun, Korea;3. Department of Physics, Bangalore University, Bangalore, India;4. Department of Physics, Yonsei University, Seodaemun‐Gu, Seoul, Korea |