Magnetic anisotropy and reversal in epitaxial Fe/MgO(001) films

Qing Feng Zhan; Stijn Vandezande; Kristiaan Temst; Chris Van Haesendonck

doi:10.1103/PhysRevB.80.094416

Magnetic anisotropy and reversal in epitaxial Fe/MgO(001) films

Qing Feng Zhan^*
, Stijn Vandezande
, Kristiaan Temst
, Chris Van Haesendonck

^*Corresponding author for this work

KU Leuven

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

51 Scopus citations

Abstract

We investigate the magnetization reversal in Fe/MgO(001) films with fourfold in-plane magnetic anisotropy and an additional uniaxial anisotropy whose orientation and strength are altered using different growth geometries and postgrowth treatments. The previously adopted mechanism of 180°domain-wall nucleation clearly fails to explain the observed 180° magnetization reversal in Fe/MgO(001) films. We introduce a reversal mechanism with two successive domain-wall nucleations to consistently predict the switching fields of Fe/MgO(001) films for all field orientations with one set of values for domain-wall nucleation energies and uniaxial anisotropy.

Original language	English
Article number	094416
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	80
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.80.094416
State	Published - 24 Sep 2009
Externally published	Yes

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10.1103/PhysRevB.80.094416

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title = "Magnetic anisotropy and reversal in epitaxial Fe/MgO(001) films",

abstract = "We investigate the magnetization reversal in Fe/MgO(001) films with fourfold in-plane magnetic anisotropy and an additional uniaxial anisotropy whose orientation and strength are altered using different growth geometries and postgrowth treatments. The previously adopted mechanism of 180°domain-wall nucleation clearly fails to explain the observed 180° magnetization reversal in Fe/MgO(001) films. We introduce a reversal mechanism with two successive domain-wall nucleations to consistently predict the switching fields of Fe/MgO(001) films for all field orientations with one set of values for domain-wall nucleation energies and uniaxial anisotropy.",

author = "Zhan, \{Qing Feng\} and Stijn Vandezande and Kristiaan Temst and \{Van Haesendonck\}, Chris",

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AU - Zhan, Qing Feng

AU - Vandezande, Stijn

AU - Temst, Kristiaan

AU - Van Haesendonck, Chris

PY - 2009/9/24

Y1 - 2009/9/24

N2 - We investigate the magnetization reversal in Fe/MgO(001) films with fourfold in-plane magnetic anisotropy and an additional uniaxial anisotropy whose orientation and strength are altered using different growth geometries and postgrowth treatments. The previously adopted mechanism of 180°domain-wall nucleation clearly fails to explain the observed 180° magnetization reversal in Fe/MgO(001) films. We introduce a reversal mechanism with two successive domain-wall nucleations to consistently predict the switching fields of Fe/MgO(001) films for all field orientations with one set of values for domain-wall nucleation energies and uniaxial anisotropy.

AB - We investigate the magnetization reversal in Fe/MgO(001) films with fourfold in-plane magnetic anisotropy and an additional uniaxial anisotropy whose orientation and strength are altered using different growth geometries and postgrowth treatments. The previously adopted mechanism of 180°domain-wall nucleation clearly fails to explain the observed 180° magnetization reversal in Fe/MgO(001) films. We introduce a reversal mechanism with two successive domain-wall nucleations to consistently predict the switching fields of Fe/MgO(001) films for all field orientations with one set of values for domain-wall nucleation energies and uniaxial anisotropy.

UR - https://www.scopus.com/pages/publications/70349973271

U2 - 10.1103/PhysRevB.80.094416

DO - 10.1103/PhysRevB.80.094416

M3 - 文章

AN - SCOPUS:70349973271

SN - 1098-0121

VL - 80

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 9

M1 - 094416

ER -

Magnetic anisotropy and reversal in epitaxial Fe/MgO(001) films

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