Phase diagrams and energy barriers of exchange-biased bilayers with additional anisotropies in the ferromagnet

T. Mewes; H. Nembach; J. Fassbender; B. Hillebrands; J-V. Kim; Robert Stamps

doi:10.1103/PhysRevB.67.104422

Phase diagrams and energy barriers of exchange-biased bilayers with additional anisotropies in the ferromagnet

T. Mewes, H. Nembach, J. Fassbender, B. Hillebrands, J-V. Kim, Robert Stamps

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

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Abstract

A general discussion of magnetization in exchange-biased bilayers with higher-order anisotropy contributions in an applied magnetic field is given. Allowed magnetic configurations for a ferromagnet in an applied magnetic field are shown in magnetic phase diagrams that illustrate competing effects of unidirectional, uniaxial, and fourfold anisotropies. The role and asymmetry of energy barriers during magnetization reversal are discussed in detail. A direct comparison with recent experimental results in epitaxial NiFe/FeMn bilayers is provided, and the influence of thermal activation on the magnetization reversal process is discussed.

Original language	English
Pages (from-to)	104422-1-104422-8
Journal	Physical Review B
Volume	67
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.67.104422
Publication status	Published - 2003

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10.1103/PhysRevB.67.104422

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abstract = "A general discussion of magnetization in exchange-biased bilayers with higher-order anisotropy contributions in an applied magnetic field is given. Allowed magnetic configurations for a ferromagnet in an applied magnetic field are shown in magnetic phase diagrams that illustrate competing effects of unidirectional, uniaxial, and fourfold anisotropies. The role and asymmetry of energy barriers during magnetization reversal are discussed in detail. A direct comparison with recent experimental results in epitaxial NiFe/FeMn bilayers is provided, and the influence of thermal activation on the magnetization reversal process is discussed.",

author = "T. Mewes and H. Nembach and J. Fassbender and B. Hillebrands and J-V. Kim and Robert Stamps",

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AU - Mewes, T.

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AU - Fassbender, J.

AU - Hillebrands, B.

AU - Kim, J-V.

AU - Stamps, Robert

PY - 2003

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N2 - A general discussion of magnetization in exchange-biased bilayers with higher-order anisotropy contributions in an applied magnetic field is given. Allowed magnetic configurations for a ferromagnet in an applied magnetic field are shown in magnetic phase diagrams that illustrate competing effects of unidirectional, uniaxial, and fourfold anisotropies. The role and asymmetry of energy barriers during magnetization reversal are discussed in detail. A direct comparison with recent experimental results in epitaxial NiFe/FeMn bilayers is provided, and the influence of thermal activation on the magnetization reversal process is discussed.

AB - A general discussion of magnetization in exchange-biased bilayers with higher-order anisotropy contributions in an applied magnetic field is given. Allowed magnetic configurations for a ferromagnet in an applied magnetic field are shown in magnetic phase diagrams that illustrate competing effects of unidirectional, uniaxial, and fourfold anisotropies. The role and asymmetry of energy barriers during magnetization reversal are discussed in detail. A direct comparison with recent experimental results in epitaxial NiFe/FeMn bilayers is provided, and the influence of thermal activation on the magnetization reversal process is discussed.

U2 - 10.1103/PhysRevB.67.104422

DO - 10.1103/PhysRevB.67.104422

M3 - Article

SN - 1098-0121

VL - 67

SP - 104422-1-104422-8

JO - Physical Review B

JF - Physical Review B

IS - 10

ER -

Phase diagrams and energy barriers of exchange-biased bilayers with additional anisotropies in the ferromagnet

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