| Autor: |
Bohlens S; Institut für Theoretische Physik, Universität Hamburg, Germany., Pfannkuche D |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2010 Oct 22; Vol. 105 (17), pp. 177201. Date of Electronic Publication: 2010 Oct 18. |
| DOI: |
10.1103/PhysRevLett.105.177201 |
| Abstrakt: |
We analytically determine the spatially varying spin-transfer torque within a domain wall. In the case of ballistic spin and diffusive charge transport, the spin-transfer torque as well as the local degree of nonadiabaticity oscillate within a domain wall. In narrow domain walls, the degree of nonadiabaticity ceases to be a constant material parameter but depends on the domain-wall width including a possible sign change, which is crucial for experiments and the technological utilization in spin-transfer-torque-based storage devices. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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