Domain wall displacement by remote spin-current injection

Journal Article · Mon Jun 16 04:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4883740· OSTI ID:22299896

Skirdkov, P. N.; Zvezdin, K. A.; Belanovsky, A. D.; Zvezdin, A. K. ^[1]; Grollier, J.; Cros, V. ^[2]; Ross, C. A. ^[3]

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1. A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilova 38, 119991 Moscow (Russian Federation)
2. Unité Mixte de Physique CNRS/Thales and Université Paris-Sud, 1 Ave. A. Fresnel, 91767 Palaiseau (France)
3. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

We demonstrate numerically the ability to displace a magnetic domain wall (DW) by remote spin current injection. We consider a long and narrow magnetic nanostripe with a single DW. The spin-polarized current is injected perpendicularly to the film plane through a small nanocontact which is located at certain distance from the DW initial position. We show that the DW motion can be initiated not only by conventional spin-transfer torque but also by indirect spin-torque, created by remote spin-current injection and then transferred to the DW by the exchange-spring mechanism. An analytical description of this effect is proposed.

• OSTI ID: 22299896
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 24 Vol. 104; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTERIZED SIMULATION
CURRENTS
DOMAIN STRUCTURE
FILMS
INJECTION
NANOSTRUCTURES
SPIN
SPIN ORIENTATION
TORQUE