Equivalent Electric Model of a Macrospin

Fuente: arXiv
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Auteurs principaux: Louis, Steven, Bradley, Hannah, Tyberkevych, Vasyl
Format: Preprint
Publié: 2025
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author Louis, Steven
Bradley, Hannah
Tyberkevych, Vasyl
author_facet Louis, Steven
Bradley, Hannah
Tyberkevych, Vasyl
contents Dynamics of a ferromagnetic macrospin (e.g., a free layer of a magnetic tunnel junction (MTJ)) can be described in terms of equivalent capacitor charge $Q$ and inductor flux $Φ$, in a manner similar to a standard electric LC circuit, but with strongly nonlinear and coupled capacitance and inductance. This description allows for the inclusion of Gilbert damping and spin transfer torques and yields a relatively simple equivalent electric circuit, which can be easily modeled in LTspice or other electrical engineering software. It allows one to easily simulate advanced electrical circuits containing MTJs and conventional electronic components in standard simulation software.
format Preprint
id arxiv_https___arxiv_org_abs_2503_20811
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Equivalent Electric Model of a Macrospin
Louis, Steven
Bradley, Hannah
Tyberkevych, Vasyl
Mesoscale and Nanoscale Physics
Other Condensed Matter
Dynamics of a ferromagnetic macrospin (e.g., a free layer of a magnetic tunnel junction (MTJ)) can be described in terms of equivalent capacitor charge $Q$ and inductor flux $Φ$, in a manner similar to a standard electric LC circuit, but with strongly nonlinear and coupled capacitance and inductance. This description allows for the inclusion of Gilbert damping and spin transfer torques and yields a relatively simple equivalent electric circuit, which can be easily modeled in LTspice or other electrical engineering software. It allows one to easily simulate advanced electrical circuits containing MTJs and conventional electronic components in standard simulation software.
title Equivalent Electric Model of a Macrospin
topic Mesoscale and Nanoscale Physics
Other Condensed Matter
url https://arxiv.org/abs/2503.20811