Changes in ferromagnetic spin structure induced by exchange bias in Fe/MnF2 films

W. A.A. Macedo; B. Sahoo; V. Kuncser; J. Eisenmenger; I. Felner; J. Nogués; Kai Liu; W. Keune; Ivan K. Schuller

doi:10.1103/PhysRevB.70.224414

Changes in ferromagnetic spin structure induced by exchange bias in Fe/MnF₂ films

W. A.A. Macedo^*, B. Sahoo, V. Kuncser, J. Eisenmenger, I. Felner, J. Nogués, Kai Liu, W. Keune, Ivan K. Schuller

^*Corresponding author for this work

Racah Institute of Physics

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

38 Scopus citations

Abstract

Depth-dependent Fe spin structures of the remanent state in exchange-coupled Fe/MnF₂ films have been probed using ⁵⁷Fe conversion electron Mössbauer spectroscopy, both above and well below the MnF₂ Néel temperature. ⁵⁷Fe probe layers were embedded either at the Fe/MnF₂ interface or in the center of the Fe film. Remarkably, exchange bias induces a significant change of the in-plane angular distribution of the Fe magnetic moments at the interface and inside the Fe film, away from the saturation magnetization direction. Results from vector magnetometry support these conclusions.

Original language	English
Article number	224414
Pages (from-to)	224414-1-224414-5
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	70
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.70.224414
State	Published - Dec 2004

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title = "Changes in ferromagnetic spin structure induced by exchange bias in Fe/MnF2 films",

abstract = "Depth-dependent Fe spin structures of the remanent state in exchange-coupled Fe/MnF2 films have been probed using 57Fe conversion electron M{\"o}ssbauer spectroscopy, both above and well below the MnF2 N{\'e}el temperature. 57Fe probe layers were embedded either at the Fe/MnF2 interface or in the center of the Fe film. Remarkably, exchange bias induces a significant change of the in-plane angular distribution of the Fe magnetic moments at the interface and inside the Fe film, away from the saturation magnetization direction. Results from vector magnetometry support these conclusions.",

author = "Macedo, {W. A.A.} and B. Sahoo and V. Kuncser and J. Eisenmenger and I. Felner and J. Nogu{\'e}s and Kai Liu and W. Keune and Schuller, {Ivan K.}",

year = "2004",

month = dec,

doi = "10.1103/PhysRevB.70.224414",

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volume = "70",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

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AU - Macedo, W. A.A.

AU - Sahoo, B.

AU - Kuncser, V.

AU - Eisenmenger, J.

AU - Felner, I.

AU - Nogués, J.

AU - Liu, Kai

AU - Keune, W.

AU - Schuller, Ivan K.

PY - 2004/12

Y1 - 2004/12

N2 - Depth-dependent Fe spin structures of the remanent state in exchange-coupled Fe/MnF2 films have been probed using 57Fe conversion electron Mössbauer spectroscopy, both above and well below the MnF2 Néel temperature. 57Fe probe layers were embedded either at the Fe/MnF2 interface or in the center of the Fe film. Remarkably, exchange bias induces a significant change of the in-plane angular distribution of the Fe magnetic moments at the interface and inside the Fe film, away from the saturation magnetization direction. Results from vector magnetometry support these conclusions.

AB - Depth-dependent Fe spin structures of the remanent state in exchange-coupled Fe/MnF2 films have been probed using 57Fe conversion electron Mössbauer spectroscopy, both above and well below the MnF2 Néel temperature. 57Fe probe layers were embedded either at the Fe/MnF2 interface or in the center of the Fe film. Remarkably, exchange bias induces a significant change of the in-plane angular distribution of the Fe magnetic moments at the interface and inside the Fe film, away from the saturation magnetization direction. Results from vector magnetometry support these conclusions.

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Changes in ferromagnetic spin structure induced by exchange bias in Fe/MnF₂ films

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