Injecting, controlling, and storing magnetic domain walls in ferromagnetic nanowires

Andrew Kunz; Jonathan D. Priem; Sarah C. Reiff

doi:10.1117/12.861552

24 August 2010 Injecting, controlling, and storing magnetic domain walls in ferromagnetic nanowires

Andrew Kunz, Jonathan D. Priem, Sarah C. Reiff

Proceedings Volume 7760, Spintronics III; 776005 (2010) https://doi.org/10.1117/12.861552
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

Domain walls in ferromagnetic nanowires are important for proposed devices in recording, logic, and sensing. The realization of such devices depends in part on the ability to quickly and accurately control the domain wall from creation until placement. Using micromagnetic computer simulation we demonstrate how a combination of externally applied magnetic fields is used to quickly inject, move, and accurately place multiple domain walls within a single wire for potential recording and logical operations. The use of a magnetic field component applied perpendicular to the principle domain wall driving field is found to be critical for increased speed and reliability. The effects of the transverse field on the injection and trapping of the domain wall will be shown to be of particular importance.

Citation Download Citation

Andrew Kunz, Jonathan D. Priem, and Sarah C. Reiff "Injecting, controlling, and storing magnetic domain walls in ferromagnetic nanowires", Proc. SPIE 7760, Spintronics III, 776005 (24 August 2010); https://doi.org/10.1117/12.861552

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