1. Department of Display Materials Engineering, Soonchunhyang University, 22, Soonchunhyang-ro, Asan City, Chungnam31538, Republic of Korea
2. Department of Electronic Materials, Devices, and Equipment Engineering, Soonchunhyang University, 22, Soonchunhyang-ro, Asan City, Chungnam31538, Republic of Korea
3. Memory Metal Technology Team, Giheung Hwaseong Complex, Samsung Electronics, Suwon445-701, South Korea
4. Department of Materials Science and Engineering, Seoul National University, Seoul151-744, Korea
5. Department of Mechanical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do15588, Republic of Korea