High field ferromagnetic resonance and torque magnetometry of longitudinal recording media

C. J. Oates; F. Y. Ogrin; P. C. Riedi; S. L. Lee; G. M. Smith; T. Thomson

doi:10.1016/S0304-8853(01)01226-4

High field ferromagnetic resonance and torque magnetometry of longitudinal recording media

C. J. Oates, F. Y. Ogrin, P. C. Riedi, S. L. Lee, G. M. Smith, T. Thomson

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

Abstract

High field (> 20kOe) multi-frequency, 75-95GHz, ferromagnetic resonance was used to determine the magnetocrystalline anisotropy and Gilbert damping parameter of two types of CoCrPtTa longitudinal recording media. The magnetocrystalline anisotropy as measured by FMR of both samples was 10.8kOe which is larger than that measured from torque magnetometry which was 9.6kOe. We suggest that this difference is due to the presence of exchange coupling between the grains. © 2002 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	402-404
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	242-245
Issue number	I
DOIs	https://doi.org/10.1016/S0304-8853(01)01226-4
Publication status	Published - Apr 2002

Keywords

Anisotropy-magnetocrystalline
Ferromagnetic resonance
Information storage - longitudinal

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10.1016/S0304-8853(01)01226-4

Cite this

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title = "High field ferromagnetic resonance and torque magnetometry of longitudinal recording media",

abstract = "High field (> 20kOe) multi-frequency, 75-95GHz, ferromagnetic resonance was used to determine the magnetocrystalline anisotropy and Gilbert damping parameter of two types of CoCrPtTa longitudinal recording media. The magnetocrystalline anisotropy as measured by FMR of both samples was 10.8kOe which is larger than that measured from torque magnetometry which was 9.6kOe. We suggest that this difference is due to the presence of exchange coupling between the grains. {\textcopyright} 2002 Elsevier Science B.V. All rights reserved.",

keywords = "Anisotropy-magnetocrystalline, Ferromagnetic resonance, Information storage - longitudinal",

author = "Oates, {C. J.} and Ogrin, {F. Y.} and Riedi, {P. C.} and Lee, {S. L.} and Smith, {G. M.} and T. Thomson",

note = "Oates, CJ Ogrin, FY Riedi, PC Lee, SL Smith, GM Thomson, T Joint European Magnetic Symposia (JEMS 01) Aug 28-sep 01, 2001 Grenoble, france CNRS, CEA, MENRT, DGA, Inst Natl Polytechn Grenoble, Univ Joseph Fourier, Soc Francaise Phys, European Phys Soc, IEEE Magnet Soc, Mairie Grenoble, Grenoble Alpes Metropole, Reg Rhone Alpes, Conseil Gen Isere Part 1",

year = "2002",

month = apr,

doi = "10.1016/S0304-8853(01)01226-4",

language = "English",

volume = "242-245",

pages = "402--404",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier BV",

number = "I",

}

TY - JOUR

T1 - High field ferromagnetic resonance and torque magnetometry of longitudinal recording media

AU - Oates, C. J.

AU - Ogrin, F. Y.

AU - Riedi, P. C.

AU - Lee, S. L.

AU - Smith, G. M.

AU - Thomson, T.

N1 - Oates, CJ Ogrin, FY Riedi, PC Lee, SL Smith, GM Thomson, T Joint European Magnetic Symposia (JEMS 01) Aug 28-sep 01, 2001 Grenoble, france CNRS, CEA, MENRT, DGA, Inst Natl Polytechn Grenoble, Univ Joseph Fourier, Soc Francaise Phys, European Phys Soc, IEEE Magnet Soc, Mairie Grenoble, Grenoble Alpes Metropole, Reg Rhone Alpes, Conseil Gen Isere Part 1

PY - 2002/4

Y1 - 2002/4

N2 - High field (> 20kOe) multi-frequency, 75-95GHz, ferromagnetic resonance was used to determine the magnetocrystalline anisotropy and Gilbert damping parameter of two types of CoCrPtTa longitudinal recording media. The magnetocrystalline anisotropy as measured by FMR of both samples was 10.8kOe which is larger than that measured from torque magnetometry which was 9.6kOe. We suggest that this difference is due to the presence of exchange coupling between the grains. © 2002 Elsevier Science B.V. All rights reserved.

AB - High field (> 20kOe) multi-frequency, 75-95GHz, ferromagnetic resonance was used to determine the magnetocrystalline anisotropy and Gilbert damping parameter of two types of CoCrPtTa longitudinal recording media. The magnetocrystalline anisotropy as measured by FMR of both samples was 10.8kOe which is larger than that measured from torque magnetometry which was 9.6kOe. We suggest that this difference is due to the presence of exchange coupling between the grains. © 2002 Elsevier Science B.V. All rights reserved.

KW - Anisotropy-magnetocrystalline

KW - Ferromagnetic resonance

KW - Information storage - longitudinal

U2 - 10.1016/S0304-8853(01)01226-4

DO - 10.1016/S0304-8853(01)01226-4

M3 - Article

SN - 0304-8853

VL - 242-245

SP - 402

EP - 404

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - I

ER -

High field ferromagnetic resonance and torque magnetometry of longitudinal recording media

Abstract

Keywords

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