1. Department of Nano Fusion Technology, Pusan National University, Miryang, 50463, Republic of Korea
2. Plasma Technology Research Center, National Fusion Research Institute, 37 Dongjangsan-ro, Gunsan-si, Jeollabuk-do, 54004, Republic of Korea
3. Department of Nanomechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea