Parametric amplification of reversible transverse susceptibility in single domain magnetic nanoparticles
We propose, model, and experimentally demonstrate the enhancement of reversible transverse susceptibility in single domain magnetic nanoparticles through the principle of parametric amplification. It has previously been demonstrated that properly oriented anisotropic single domain magnetic nanoparti...
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Format: | Article |
Language: | English |
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AIP Publishing LLC
2019-04-01
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Series: | AIP Advances |
Online Access: | http://dx.doi.org/10.1063/1.5079980 |
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author | Hatem ElBidweihy Richard D. Smith Mladen Barbic |
author_facet | Hatem ElBidweihy Richard D. Smith Mladen Barbic |
author_sort | Hatem ElBidweihy |
collection | DOAJ |
description | We propose, model, and experimentally demonstrate the enhancement of reversible transverse susceptibility in single domain magnetic nanoparticles through the principle of parametric amplification. It has previously been demonstrated that properly oriented anisotropic single domain magnetic nanoparticles have an appreciable peak in transverse susceptibility at the particle anisotropy field. Here we show theoretically and experimentally that an additional parametric AC magnetic field applied at a proper phase and at twice the frequency (2f) of the transverse field further enhances transverse susceptibility peaks through the process of parametric amplification. We model this effect numerically and describe it through the energy formalism of the single magnetic domain Stoner-Wohlfarth model. The proper phase relationships of the transverse and parametric fields to obtain either parametric amplification or attenuation of the transverse susceptibility signals are also described. We experimentally demonstrate such parametric tuning of transverse susceptibility in single domain magnetic nanoparticles of a commercial audio tape in a prototypical inductive transverse susceptibility set-up. |
first_indexed | 2024-12-11T21:35:45Z |
format | Article |
id | doaj.art-56c9d56d28dc49939e3f968d21f0638e |
institution | Directory Open Access Journal |
issn | 2158-3226 |
language | English |
last_indexed | 2024-12-11T21:35:45Z |
publishDate | 2019-04-01 |
publisher | AIP Publishing LLC |
record_format | Article |
series | AIP Advances |
spelling | doaj.art-56c9d56d28dc49939e3f968d21f0638e2022-12-22T00:50:01ZengAIP Publishing LLCAIP Advances2158-32262019-04-0194045031045031-710.1063/1.5079980103992ADVParametric amplification of reversible transverse susceptibility in single domain magnetic nanoparticlesHatem ElBidweihy0Richard D. Smith1Mladen Barbic2Electrical and Computer Engineering Department, United States Naval Academy, Annapolis, Maryland 21402, USAHoward Hughes Medical Institute, Janelia Research Campus, Applied Physics and Instrumentation Group, Ashburn, Virginia 20147, USAHoward Hughes Medical Institute, Janelia Research Campus, Applied Physics and Instrumentation Group, Ashburn, Virginia 20147, USAWe propose, model, and experimentally demonstrate the enhancement of reversible transverse susceptibility in single domain magnetic nanoparticles through the principle of parametric amplification. It has previously been demonstrated that properly oriented anisotropic single domain magnetic nanoparticles have an appreciable peak in transverse susceptibility at the particle anisotropy field. Here we show theoretically and experimentally that an additional parametric AC magnetic field applied at a proper phase and at twice the frequency (2f) of the transverse field further enhances transverse susceptibility peaks through the process of parametric amplification. We model this effect numerically and describe it through the energy formalism of the single magnetic domain Stoner-Wohlfarth model. The proper phase relationships of the transverse and parametric fields to obtain either parametric amplification or attenuation of the transverse susceptibility signals are also described. We experimentally demonstrate such parametric tuning of transverse susceptibility in single domain magnetic nanoparticles of a commercial audio tape in a prototypical inductive transverse susceptibility set-up.http://dx.doi.org/10.1063/1.5079980 |
spellingShingle | Hatem ElBidweihy Richard D. Smith Mladen Barbic Parametric amplification of reversible transverse susceptibility in single domain magnetic nanoparticles AIP Advances |
title | Parametric amplification of reversible transverse susceptibility in single domain magnetic nanoparticles |
title_full | Parametric amplification of reversible transverse susceptibility in single domain magnetic nanoparticles |
title_fullStr | Parametric amplification of reversible transverse susceptibility in single domain magnetic nanoparticles |
title_full_unstemmed | Parametric amplification of reversible transverse susceptibility in single domain magnetic nanoparticles |
title_short | Parametric amplification of reversible transverse susceptibility in single domain magnetic nanoparticles |
title_sort | parametric amplification of reversible transverse susceptibility in single domain magnetic nanoparticles |
url | http://dx.doi.org/10.1063/1.5079980 |
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