High Domain Wall Velocities due to Spin Currents Perpendicular to the Plane. Khvalkovskiy, A. V., Zvezdin, K. A., Gorbunov, Y. V., Cros, V., Grollier, J., Fert, A., & Zvezdin, A. K. Physical Review Letters, 102(6):067206, February, 2009.
Paper doi abstract bibtex We consider long and narrow spin valves composed of a first magnetic layer with a single domain wall (DW), a normal metal spacer, and a second magnetic layer that is a planar or a perpendicular polarizer. For these structures, we study numerically DW dynamics taking into account the spin torques due to the perpendicular spin currents. We obtain high DW velocities: 5 m/s for planar polarizer and 80 m/s for perpendicular polarizer for I=0.01 mA. These values are much larger than those predicted and observed for DW motion due to the in-plane spin currents. The ratio of the magnitudes of the torques, which generate the DW motion in the respective cases, is responsible for these large differences.
@article{khvalkovskiy_high_2009,
title = {High {Domain} {Wall} {Velocities} due to {Spin} {Currents} {Perpendicular} to the {Plane}},
volume = {102},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.102.067206},
doi = {10.1103/PhysRevLett.102.067206},
abstract = {We consider long and narrow spin valves composed of a first magnetic layer with a single domain wall (DW), a normal metal spacer, and a second magnetic layer that is a planar or a perpendicular polarizer. For these structures, we study numerically DW dynamics taking into account the spin torques due to the perpendicular spin currents. We obtain high DW velocities: 5 m/s for planar polarizer and 80 m/s for perpendicular polarizer for I=0.01 mA. These values are much larger than those predicted and observed for DW motion due to the in-plane spin currents. The ratio of the magnitudes of the torques, which generate the DW motion in the respective cases, is responsible for these large differences.},
number = {6},
urldate = {2019-01-11},
journal = {Physical Review Letters},
author = {Khvalkovskiy, A. V. and Zvezdin, K. A. and Gorbunov, Ya. V. and Cros, V. and Grollier, J. and Fert, A. and Zvezdin, A. K.},
month = feb,
year = {2009},
pages = {067206},
}
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