1) A. Yamaguchi, T. Ono, S. Nasu, K. Miyake, K. Mibu, and T. Shinjo, Real-Space Observation of Current-Driven Domain Wall Motion in Submicron Magnetic Wires, Physical Review Letter, 92, 077205 (2004).
2) T. Ono, H. Miyajima, K. Shigeto, K. Mibu, N. Hosoito, and T. Shinjo, Propagation of a Magnetic Domain Wall in a Submicrometer Magnetic Wire, Science, 284, 468-470 (1999).
3) S. S. P. Parkin, M. Hayashi, and L. Thoms, Magnetic Domain-Wall Racetrack Memory, Science, 320, 190-194 (2008).
4) J. Iwasaki, M. Mochizuki, and N. Nagaosa, Current-Induced Skyrmion Dynamics in Constricted Geometries, Nature Nanotech., 8, 742-747 (2013).
5) R. Tomasello, E. Martinez, R. Zivieri, L. Torres, M. Carpentieri, and G. Finocchio, A Strategy for the Design of Skyrmion Racetrack Memories, Sci. Rep., 4, 6784 (2014).
6) A. V. Khvalkovskiy, V. Cros, D. Apalkov, V. Nikitin, M. Krounbi, K. A. Zvezdin, A. Anane, J. Grollier, and A. Fert, Matching Domain-Wall Configuration and Spin-Orbit Torques for Efficient Domain-Wall Motion, Phys. Rev. B, 87, 020402(R) (2013).
7) A. Hubert and R. Schaefer, Magnetic Domains: The Analysis of Magnetic Microstructures, Springer, (1998).
8) S. Blundell, Magnetism in Condensed Matter (Oxford Master Series in Physics), Oxford Univ Pr, (2001).
9) G. S. Abo, Y-Ki Hong, J. Park, J. Lee, W. Lee, and B.-C. Choi, Definition of Magnetic Exchange Length, IEEE Trans. Magn., 49, 4937-4939 (2013).
10) S. Rohart and T. Thiaville, Skyrmion Confinement in Ultrathin Film Nanostructures in the Presence of Dzyaloshinskii-Moriya Interaction, Phys. Rev. B, 88, 184422 (2013).
11) Y. Nakatani, Y. Uesaka, and N. Hayashi, Direct Solution of the Landau-Lifshitz-Gilbert Equation for Micromagnetics, Jpn. J. Appl. Phys., 28, 2485 (1989).
12) G. Yu, Z. Wang, M. A.-Beygi1, C. He, X. Li, K. L. Wong, P. Nordeen, H. Wu, G. P. Carman, X. Han, I. A. Alhomoudi, P. K. Amiri, and K. L. Wang, Strain-induced Modulation of Perpendicular Magnetic Anisotropy in Ta/Cofeb/Mgo Structures Investigated by Ferromagnetic Resonance, Appl. Phys. Lett., 106, 072402 (2015).
13) M. D. Stiles, W. M. Saslow, M. J. Donahue, and A. Zangwill, Adiabatic Domain Wall Motion and Landau-Lifshitz Damping, Phys. Rev. B, 75, 214423 (2007).
14) Y. Ren, Y. L. Zuo, M. S. Si, Z. Z. Zhang, Q. Y. Jin, and S. M. Zhou, Correlation Between Ultrafast Demagnetization Process and Gilbert Damping in Amorphous TbFeCo Films, IEEE Trans. Magn., 49, 3159-3162 (2013).
15) V. B. Naik, H. Meng, and R. Sbiaa, Thick CoFeB with Perpendicular Magnetic Anisotropy in Cofeb-Mgo Based Magnetic Tunnel Junction, AIP Advances, 2, 04282 (2012).
16) C. Bilzer, T. Devolder, J.-V. Kim, G. Counil, C. Chappert, S. Cardoso, and P. P. Freitas, Study of the Dynamic Magnetic Properties of Soft Cofeb Films, J. Appl. Phys., 100, 053903 (2006).
17) M. T. Rahman, X. Liu, M. Matsumoto, and A. Morisako, Compositional Dependence Of Magnetoresistance in Tbfeco Amorphous Film, IEEE Trans. Magn., 41, 2568-2570 (2005).