Power optimization for domain wall motion in ferromagnetic nanowires Conference Paper

abstract

• The current mediated domain-wall dynamics in a thin ferromagnetic wire is investigated. We derive the effective equations of motion of the domain wall. They are used to study the possibility to optimize the power supplied by electric current for the motion of domain walls in a nanowire. We show that a certain resonant time-dependent current moving a domain wall can significantly reduce the Joule heating in the wire, and thus it can lead to a novel proposal for the most energy efficient memory devices. We discuss how Gilbert damping, nonadiabatic spin transfer torque, and the presence of Dzyaloshinskii-Moriya interaction can effect this power optimization. 2011 American Institute of Physics.

authors

• Abanov, Artem

published proceedings

• JOURNAL OF APPLIED PHYSICS

author list (cited authors)

• Tretiakov, O. A., Liu, Y., & Abanov, A. r.

citation count

• 5

complete list of authors

• Tretiakov, OA||Liu, Y||Abanov, Ar

publication date

• January 2011

publisher

• AIP Publishing  Publisher

published in

• Journal of Applied Physics  Journal

keywords

• 7 Affordable And Clean Energy

Digital Object Identifier (DOI)

• 10.1063/1.3554202

start page

• 07d505

end page

• 07D505

volume

• 109

issue

• 7

URL

• http://dx.doi.org/10.1063/1.3554202

user-defined tag

• 7 Affordable and Clean Energy