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

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, ferromagrictic 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 10.8 kOc 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. (C) 2002 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	402-404
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	242
Publication status	Published - Apr 2002

Keywords

ferromagnetic resonance
anisotropy-magnetocrystalline
information storage-longitudinal
FILMS

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

abstract = "High field (>20kOe) multi-frequency, 75-95GHz, ferromagrictic 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 10.8 kOc 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. (C) 2002 Elsevier Science B.V. All rights reserved.",

keywords = "ferromagnetic resonance, anisotropy-magnetocrystalline, information storage-longitudinal, FILMS",

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

year = "2002",

month = apr,

language = "English",

volume = "242",

pages = "402--404",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

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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

PY - 2002/4

Y1 - 2002/4

N2 - High field (>20kOe) multi-frequency, 75-95GHz, ferromagrictic 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 10.8 kOc 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. (C) 2002 Elsevier Science B.V. All rights reserved.

AB - High field (>20kOe) multi-frequency, 75-95GHz, ferromagrictic 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 10.8 kOc 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. (C) 2002 Elsevier Science B.V. All rights reserved.

KW - ferromagnetic resonance

KW - anisotropy-magnetocrystalline

KW - information storage-longitudinal

KW - FILMS

UR - https://www.scopus.com/pages/publications/0036531447

M3 - Article

SN - 0304-8853

VL - 242

SP - 402

EP - 404

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

ER -

High field ferromagnetic resonance and torque magnetometry of longitudinal recording media

Abstract

Keywords

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