Shape Asymmetry Effect on Vortex Annihilation in Submicro-scaled Magnetic Disks

Wu, Kuo-Ming (Department of Physics and Taiwan SPIN Research Center, National Changhua University of Education) ;
Tsai, Yu-Ching (Department of Physics and Taiwan SPIN Research Center, National Changhua University of Education) ;
Huang, Chao-Hsien (Department of Physics and Taiwan SPIN Research Center, National Changhua University of Education) ;
Wu, Jong-Ching (Department of Physics and Taiwan SPIN Research Center, National Changhua University of Education) ;
Lee, Ching-Ming (General Education Center and Taiwan SPIN Research Center, National Yunlin University of Science and Technology) ;
Horng, Lance (Department of Physics and Taiwan SPIN Research Center, National Changhua University of Education)