1. Key Laboratory of Optoelectronics Technology, College of Microelectronics, Beijing University of Technology, Beijing 100124, China
2. Materials Science and Engineering, KTH Royal Institute of Technology, Brinellvägen 23, SE-100 44 Stockholm, Sweden
3. Thermo-Calc Software AB, Råsundavägen 18, SE-169 67 Solna, Sweden