Negative coercivity observed on a surfaces of $Fe_{76.5}Cu_1Si_{13.5}B_9$ ribbon annealed by light on a surface

Sun Dongsheng (Department of Materials Science and engineering, Chungnam National University) ;
Hong Seongmin (Research Center for Advanced Magnetic Materials, Chungnam National University) ;
Ha Nguyen Duy (Department of Materials Science and engineering, Chungnam National University) ;
Jin Lan (Research Center for Advanced Magnetic Materials, Chungnam National University) ;
Jin Hanmin (Department of Materials Science and engineering, Chungnam National University) ;
Kim Cheolgi (Department of Materials Science and engineering, Chungnam National University) ;
Kim Chongoh (Department of Materials Science and engineering, Chungnam National University) ;
Gu Yu-Seong (Research Center for Advanced Magnetic Materials, Chungnam National University)