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2008•Applied Physics LettersRequires access

Real time observation of the field driven periodic transformation of domain walls in Permalloy nanowires at the Larmor frequency and its first harmonic

Masamitsu Hayashi, Luc Thomas, Charles T. Rettner, Rai Moriya, S. Parkin

Open publisher page 26 citations

Abstract

We have observed two different field driven precessional propagation modes of a magnetic domain wall in permalloy nanowires using time resolved resistance measurements. The resistance of the nanowire oscillates at the Larmor precession frequency and at its first harmonic, corresponding to periodic transformations of the propagating domain wall between a transverse wall and either one of a vortex or an antivortex wall or both of these.

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What this paper is about

We have observed two different field driven precessional propagation modes of a magnetic domain wall in permalloy nanowires using time resolved resistance measurements. The resistance of the nanowire oscillates at the Larmor precession frequency and at its first harmonic, corresponding to periodic transformations of the propagating domain wall between a transverse wall and either one of a vortex or an antivortex wall or both of these.

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Available abstract

We have observed two different field driven precessional propagation modes of a magnetic domain wall in permalloy nanowires using time resolved resistance measurements. The resistance of the nanowire oscillates at the Larmor precession frequency and at its first harmonic, corresponding to periodic transformations of the propagating domain wall between a transverse wall and either one of a vortex or an antivortex wall or both of these.

Key concepts: Permalloy, Larmor precession, Condensed matter physics, Nanowire, Precession, Physics, Harmonic, Vortex

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Real time observation of the field driven periodic transformation of domain walls in Permalloy nanowires at the Larmor frequency and its first harmonic — Research Paper | ScholarLens