Author Affiliations

Chihun In,^1,2 Sangwan Sim,¹ Sungjoon Park,¹ Hyemin Bae,¹ Nikesh Koirala,³ Jisoo Moon,³ Maryam Salehi,⁴ Seongshik Oh,³ Dohun Kim,⁵ and Hyunyong Choi¹

¹School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, South Korea

²Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea

³Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA

⁴Department of Materials Science and Engineering, Rutgers, The state University of New Jersey, Piscataway, New Jersey 08852, USA

⁵Department of Physics and Astronomy, Seoul National University, Seoul 08826, South Korea