Magnetic relaxation in Barium ferrite films with perpendicular anisotropy

A. Lisfi, J.C. Lodder, P. de Haan, Thijs Bolhuis, F.J.G. Roesthuis

  • 5 Citations

Abstract

Magnetic relaxation analysis have been carried out on barium ferrite films with perpendicular anisotropy, grown by pulsed laser deposition. Logarithmic behaviour on the time dependence of the magnetisation has been observed. The measured and corrected viscosity exhibit a large difference because of the contribution of the demagnetisation effect. At high fields, this difference is very much reduced because of the saturation which limits the susceptibility to very low values. Compared to the grain volume, the activation volume is small (Vac/Vgrain=0.1–0.2). This result can be explained by the incoherent rotation mode of the magnetisation reversal.
Original languageUndefined
Pages (from-to)258-261
Number of pages4
JournalJournal of magnetism and magnetic materials
Volume193
Issue number193
DOIs
StatePublished - 1999

Fingerprint

Magnetic relaxation
Magnetization reversal
Demagnetization
Pulsed laser deposition
Barium
Ferrite
Magnetization
Anisotropy
Chemical activation
Viscosity

Keywords

  • EWI-5541
  • SMI-TST: From 2006 in EWI-TST
  • METIS-128754
  • SMI-EXP: EXPERIMENTAL TECHNIQUES
  • IR-62998
  • TSTNE-Magnet-VSM: Vibrating Sample Magnetometer

Cite this

Lisfi, A.; Lodder, J.C.; de Haan, P.; Bolhuis, Thijs; Roesthuis, F.J.G. / Magnetic relaxation in Barium ferrite films with perpendicular anisotropy.

In: Journal of magnetism and magnetic materials, Vol. 193, No. 193, 1999, p. 258-261.

Research output: Scientific - peer-reviewArticle

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title = "Magnetic relaxation in Barium ferrite films with perpendicular anisotropy",
abstract = "Magnetic relaxation analysis have been carried out on barium ferrite films with perpendicular anisotropy, grown by pulsed laser deposition. Logarithmic behaviour on the time dependence of the magnetisation has been observed. The measured and corrected viscosity exhibit a large difference because of the contribution of the demagnetisation effect. At high fields, this difference is very much reduced because of the saturation which limits the susceptibility to very low values. Compared to the grain volume, the activation volume is small (Vac/Vgrain=0.1–0.2). This result can be explained by the incoherent rotation mode of the magnetisation reversal.",
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author = "A. Lisfi and J.C. Lodder and {de Haan}, P. and Thijs Bolhuis and F.J.G. Roesthuis",
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year = "1999",
doi = "10.1016/S0304-8853(98)00507-1",
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journal = "Journal of magnetism and magnetic materials",
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Magnetic relaxation in Barium ferrite films with perpendicular anisotropy. / Lisfi, A.; Lodder, J.C.; de Haan, P.; Bolhuis, Thijs; Roesthuis, F.J.G.

In: Journal of magnetism and magnetic materials, Vol. 193, No. 193, 1999, p. 258-261.

Research output: Scientific - peer-reviewArticle

TY - JOUR

T1 - Magnetic relaxation in Barium ferrite films with perpendicular anisotropy

AU - Lisfi,A.

AU - Lodder,J.C.

AU - de Haan,P.

AU - Bolhuis,Thijs

AU - Roesthuis,F.J.G.

N1 - Imported from SMI Reference manager

PY - 1999

Y1 - 1999

N2 - Magnetic relaxation analysis have been carried out on barium ferrite films with perpendicular anisotropy, grown by pulsed laser deposition. Logarithmic behaviour on the time dependence of the magnetisation has been observed. The measured and corrected viscosity exhibit a large difference because of the contribution of the demagnetisation effect. At high fields, this difference is very much reduced because of the saturation which limits the susceptibility to very low values. Compared to the grain volume, the activation volume is small (Vac/Vgrain=0.1–0.2). This result can be explained by the incoherent rotation mode of the magnetisation reversal.

AB - Magnetic relaxation analysis have been carried out on barium ferrite films with perpendicular anisotropy, grown by pulsed laser deposition. Logarithmic behaviour on the time dependence of the magnetisation has been observed. The measured and corrected viscosity exhibit a large difference because of the contribution of the demagnetisation effect. At high fields, this difference is very much reduced because of the saturation which limits the susceptibility to very low values. Compared to the grain volume, the activation volume is small (Vac/Vgrain=0.1–0.2). This result can be explained by the incoherent rotation mode of the magnetisation reversal.

KW - EWI-5541

KW - SMI-TST: From 2006 in EWI-TST

KW - METIS-128754

KW - SMI-EXP: EXPERIMENTAL TECHNIQUES

KW - IR-62998

KW - TSTNE-Magnet-VSM: Vibrating Sample Magnetometer

U2 - 10.1016/S0304-8853(98)00507-1

DO - 10.1016/S0304-8853(98)00507-1

M3 - Article

VL - 193

SP - 258

EP - 261

JO - Journal of magnetism and magnetic materials

T2 - Journal of magnetism and magnetic materials

JF - Journal of magnetism and magnetic materials

SN - 0304-8853

IS - 193

ER -