Journal
APPLIED PHYSICS LETTERS
Volume 102, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4799285
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Funding
- National Natural Science Foundation of China [60571043]
- Ministry of Education of China [20120162110020]
- Natural Science Foundation of Hunan Province of China [13JJ2004]
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The spin wave propagation and the spin-wave induced domain wall motion in a nanostrip with a Bloch domain wall are studied. The spin-wave dispersion relation and the transmission coefficients across the wall are derived analytically. A one-dimensional model for the domain wall motion is constructed. It is found that the spin wave can drive the wall to move either in the same direction or in the opposite direction to that of spin-wave propagation depending on the transmission coefficient. The transmitted magnons drag the wall moving backward without inertia by the adiabatic and nonadiabatic spin-transfer torques, while the reflected magnons push the wall moving forward by the linear momentum transfer torque. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4799285]
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