Effect of Demagnetization Technique on Remanence Measurements in Metallic Ferromagnets

Jennifer Freedberg; E. Dan Dahlberg

doi:10.1109/TMAG.2020.2967709

Effect of Demagnetization Technique on Remanence Measurements in Metallic Ferromagnets

Jennifer Freedberg, E. Dan Dahlberg

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Parametric plots of the remagnetization versus demagnetization remanences were found for four metallic ferromagnets-nickel wire, two types of AlNiCo, and samarium cobalt 2:17. These plots, known as Henkel plots, were compared to Wohlfarth's model for noninteracting magnetic particles and several Preisach models. The remagnetization data were taken with a variety of paths to the net zero magnetization state. The resulting Henkel plots exhibit similarities to independent Monte Carlo simulations. The differences can be mostly explained by considering that the magnetization in the metallic ferromagnets occur by domain wall motion.

Original language	English (US)
Article number	8962250
Journal	IEEE Transactions on Magnetics
Volume	56
Issue number	4
DOIs	https://doi.org/10.1109/TMAG.2020.2967709
State	Published - Apr 2020

Bibliographical note

Funding Information:
ACKNOWLEDGMENT The authors would like to thank A. Schleusner for help in the initial stages of the project and K. Booth’s aide on several occasions. They also thank R. Victora for several productive conversations about Samarium Cobalt. This work was supported by NSF under Grant DMR 1609782.

Publisher Copyright:
© 1965-2012 IEEE.

Keywords

Demagnetization technique
Henkel plot
Wohlfarth model
metallic ferromagnet

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10.1109/TMAG.2020.2967709

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title = "Effect of Demagnetization Technique on Remanence Measurements in Metallic Ferromagnets",

abstract = "Parametric plots of the remagnetization versus demagnetization remanences were found for four metallic ferromagnets-nickel wire, two types of AlNiCo, and samarium cobalt 2:17. These plots, known as Henkel plots, were compared to Wohlfarth's model for noninteracting magnetic particles and several Preisach models. The remagnetization data were taken with a variety of paths to the net zero magnetization state. The resulting Henkel plots exhibit similarities to independent Monte Carlo simulations. The differences can be mostly explained by considering that the magnetization in the metallic ferromagnets occur by domain wall motion.",

keywords = "Demagnetization technique, Henkel plot, Wohlfarth model, metallic ferromagnet",

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N2 - Parametric plots of the remagnetization versus demagnetization remanences were found for four metallic ferromagnets-nickel wire, two types of AlNiCo, and samarium cobalt 2:17. These plots, known as Henkel plots, were compared to Wohlfarth's model for noninteracting magnetic particles and several Preisach models. The remagnetization data were taken with a variety of paths to the net zero magnetization state. The resulting Henkel plots exhibit similarities to independent Monte Carlo simulations. The differences can be mostly explained by considering that the magnetization in the metallic ferromagnets occur by domain wall motion.

AB - Parametric plots of the remagnetization versus demagnetization remanences were found for four metallic ferromagnets-nickel wire, two types of AlNiCo, and samarium cobalt 2:17. These plots, known as Henkel plots, were compared to Wohlfarth's model for noninteracting magnetic particles and several Preisach models. The remagnetization data were taken with a variety of paths to the net zero magnetization state. The resulting Henkel plots exhibit similarities to independent Monte Carlo simulations. The differences can be mostly explained by considering that the magnetization in the metallic ferromagnets occur by domain wall motion.

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Effect of Demagnetization Technique on Remanence Measurements in Metallic Ferromagnets

Abstract

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