3-D FEM analysis of thermal degradation in writing and reading characteristics of a perpendicular magnetic head

H. Kurose; M. Ohtake; Daisuke Miyagi; N. Takahashi

doi:10.1016/j.jmmm.2008.08.001

3-D FEM analysis of thermal degradation in writing and reading characteristics of a perpendicular magnetic head

H. Kurose, M. Ohtake, Daisuke Miyagi, N. Takahashi

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

5 Citations (Scopus)

Abstract

In order to achieve high-density recording, the detailed behavior of thermal degradation should be investigated. In this paper, the degradation of magnetization of high-density recording medium is examined using the 3-D finite element method (FEM) combined with the modeling of Stoner-Wohlfarth (SW) particles and Neel-Arrhenius switching probability. It is shown that the anisotropy field H_k suppressed the thermal degradation and the saturation magnetization M_s enhances it. The thermal degradation is also changed by the amplitude of magnetization.

Original language	English
Pages (from-to)	2917-2920
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	320
Issue number	22
DOIs	https://doi.org/10.1016/j.jmmm.2008.08.001
Publication status	Published - 2008 Nov 1
Externally published	Yes

Keywords

Finite element method
Perpendicular magnetic recording
Stoner-Wohlfarth particle
Thermal degradation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2008.08.001

Cite this

@article{4508782398944172bd80d5876f9bf039,

title = "3-D FEM analysis of thermal degradation in writing and reading characteristics of a perpendicular magnetic head",

abstract = "In order to achieve high-density recording, the detailed behavior of thermal degradation should be investigated. In this paper, the degradation of magnetization of high-density recording medium is examined using the 3-D finite element method (FEM) combined with the modeling of Stoner-Wohlfarth (SW) particles and Neel-Arrhenius switching probability. It is shown that the anisotropy field Hk suppressed the thermal degradation and the saturation magnetization Ms enhances it. The thermal degradation is also changed by the amplitude of magnetization.",

keywords = "Finite element method, Perpendicular magnetic recording, Stoner-Wohlfarth particle, Thermal degradation",

author = "H. Kurose and M. Ohtake and Daisuke Miyagi and N. Takahashi",

year = "2008",

month = nov,

day = "1",

doi = "10.1016/j.jmmm.2008.08.001",

language = "English",

volume = "320",

pages = "2917--2920",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "22",

}

TY - JOUR

T1 - 3-D FEM analysis of thermal degradation in writing and reading characteristics of a perpendicular magnetic head

AU - Kurose, H.

AU - Ohtake, M.

AU - Miyagi, Daisuke

AU - Takahashi, N.

PY - 2008/11/1

Y1 - 2008/11/1

N2 - In order to achieve high-density recording, the detailed behavior of thermal degradation should be investigated. In this paper, the degradation of magnetization of high-density recording medium is examined using the 3-D finite element method (FEM) combined with the modeling of Stoner-Wohlfarth (SW) particles and Neel-Arrhenius switching probability. It is shown that the anisotropy field Hk suppressed the thermal degradation and the saturation magnetization Ms enhances it. The thermal degradation is also changed by the amplitude of magnetization.

AB - In order to achieve high-density recording, the detailed behavior of thermal degradation should be investigated. In this paper, the degradation of magnetization of high-density recording medium is examined using the 3-D finite element method (FEM) combined with the modeling of Stoner-Wohlfarth (SW) particles and Neel-Arrhenius switching probability. It is shown that the anisotropy field Hk suppressed the thermal degradation and the saturation magnetization Ms enhances it. The thermal degradation is also changed by the amplitude of magnetization.

KW - Finite element method

KW - Perpendicular magnetic recording

KW - Stoner-Wohlfarth particle

KW - Thermal degradation

UR - http://www.scopus.com/inward/record.url?scp=53749088443&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=53749088443&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2008.08.001

DO - 10.1016/j.jmmm.2008.08.001

M3 - Article

AN - SCOPUS:53749088443

VL - 320

SP - 2917

EP - 2920

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 22

ER -

3-D FEM analysis of thermal degradation in writing and reading characteristics of a perpendicular magnetic head

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this