Crystalline anisotropy effect on magnetic properties and its competition with shape anisotropy

Tae Hwan Lee; Hyun Cheol Koo; Hyung Jun Kim; Suk Hee Han; Sang Ho Lim

doi:10.1007/s12540-011-0632-z

Crystalline anisotropy effect on magnetic properties and its competition with shape anisotropy

Tae Hwan Lee, Hyun Cheol Koo, Hyung Jun Kim, Suk Hee Han, Sang Ho Lim

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

3 Citations (Scopus)

Abstract

Shape and crystalline anisotropies compete when their easy axes are perpendicular. The critical aspect ratio, which is the aspect ratio required to offset the crystalline anisotropy, was observed in an effort to investigate the quantitative contribution of crystalline anisotropy using micromagnetic simulation. For a 0.25 μm width hcp-Co pattern, an aspect ratio of 2.7 is required in order to cancel out a crystalline anisotropy constant of 26 kJ/m³. The magnetic switching properties are also affected by crystalline anisotropy, which causes the magnetic domain to be narrowed during the reversal process.

Original language	English
Pages (from-to)	509-513
Number of pages	5
Journal	Metals and Materials International
Volume	17
Issue number	3
DOIs	https://doi.org/10.1007/s12540-011-0632-z
Publication status	Published - 2011 Jun

Keywords

Domain
Ferromagnetic materials
Magnetic properties
Spintronics
Thin films

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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10.1007/s12540-011-0632-z

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title = "Crystalline anisotropy effect on magnetic properties and its competition with shape anisotropy",

abstract = "Shape and crystalline anisotropies compete when their easy axes are perpendicular. The critical aspect ratio, which is the aspect ratio required to offset the crystalline anisotropy, was observed in an effort to investigate the quantitative contribution of crystalline anisotropy using micromagnetic simulation. For a 0.25 μm width hcp-Co pattern, an aspect ratio of 2.7 is required in order to cancel out a crystalline anisotropy constant of 26 kJ/m3. The magnetic switching properties are also affected by crystalline anisotropy, which causes the magnetic domain to be narrowed during the reversal process.",

keywords = "Domain, Ferromagnetic materials, Magnetic properties, Spintronics, Thin films",

author = "Lee, {Tae Hwan} and Koo, {Hyun Cheol} and Kim, {Hyung Jun} and Han, {Suk Hee} and Lim, {Sang Ho}",

note = "Funding Information: This work was supported by the KIST Institutional Program and KRCF DRC Program.",

year = "2011",

month = jun,

doi = "10.1007/s12540-011-0632-z",

language = "English",

volume = "17",

pages = "509--513",

journal = "Metals and Materials International",

issn = "1598-9623",

publisher = "Korean Institute of Metals and Materials",

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TY - JOUR

T1 - Crystalline anisotropy effect on magnetic properties and its competition with shape anisotropy

AU - Lee, Tae Hwan

AU - Koo, Hyun Cheol

AU - Kim, Hyung Jun

AU - Han, Suk Hee

AU - Lim, Sang Ho

N1 - Funding Information: This work was supported by the KIST Institutional Program and KRCF DRC Program.

PY - 2011/6

Y1 - 2011/6

N2 - Shape and crystalline anisotropies compete when their easy axes are perpendicular. The critical aspect ratio, which is the aspect ratio required to offset the crystalline anisotropy, was observed in an effort to investigate the quantitative contribution of crystalline anisotropy using micromagnetic simulation. For a 0.25 μm width hcp-Co pattern, an aspect ratio of 2.7 is required in order to cancel out a crystalline anisotropy constant of 26 kJ/m3. The magnetic switching properties are also affected by crystalline anisotropy, which causes the magnetic domain to be narrowed during the reversal process.

AB - Shape and crystalline anisotropies compete when their easy axes are perpendicular. The critical aspect ratio, which is the aspect ratio required to offset the crystalline anisotropy, was observed in an effort to investigate the quantitative contribution of crystalline anisotropy using micromagnetic simulation. For a 0.25 μm width hcp-Co pattern, an aspect ratio of 2.7 is required in order to cancel out a crystalline anisotropy constant of 26 kJ/m3. The magnetic switching properties are also affected by crystalline anisotropy, which causes the magnetic domain to be narrowed during the reversal process.

KW - Domain

KW - Ferromagnetic materials

KW - Magnetic properties

KW - Spintronics

KW - Thin films

UR - http://www.scopus.com/inward/record.url?scp=80052675415&partnerID=8YFLogxK

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DO - 10.1007/s12540-011-0632-z

M3 - Article

AN - SCOPUS:80052675415

SN - 1598-9623

VL - 17

SP - 509

EP - 513

JO - Metals and Materials International

JF - Metals and Materials International

IS - 3

ER -

Crystalline anisotropy effect on magnetic properties and its competition with shape anisotropy

Abstract

Keywords

ASJC Scopus subject areas

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