Kontan Tarigan E-mail: kontan_tarigan@yahoo.com PERSONAL DATA: Born November 10, 1962 in Langkat, North Sumatera, married, two sons. EDUCATION: Bachelor of Science degree in Physics from University of North Sumatera (USU); Master of Science degree in Materials Science from University of Indonesia (UI); Doctor degree candidate in Physics in Magnetic Nano-materials from Chungbuk National University (CBNU). EXPERIENCE: From 1985 to 1993, He served as a teacher in Physics and Mathematics at high schools (SMA Nasional Khalsa Medan, SMA Nasional Ahmad Yani Binjai, and SMA Khatolik Paskalis Jakarta); From 1993-2007, He served as a lecturer in Physics at 4 famous universities in Jakarta.