1Department of Energy Science, Sungkyunkwan University, Suwon, 16419 Republic of Korea
2Center for Integrated Nanostructure Physics, Institute for Basic Science, Suwon, 16419 Republic of Korea
3Department of Physics, Pukyong National University, Busan, 48513 Republic of Korea
4Department of Physics & Astronomy and Center for Computational Sciences, Mississippi State University, Mississippi State Mississippi, 39762 USA
5Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 37673 Republic of Korea
6Department of Physics, Kunsan National University, Gunsan, 54150 Republic of Korea
7Department of Materials Science and Engineering, Yonsei University, Seoul, 03722 Republic of Korea
8State Key Laboratory of Superhard Materials & Innovation Center of Computational Physics Methods and Software, College of Physics, Jilin University, Changchun, 130012 China
9Materials Research Center for Element Strategy, Tokyo Institute of Technology, Yokohama, 226-8503 Japan
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