Exchange-bias effect in Fe/Cr(211) double superlattice structures

J. Jiang; G. Felcher; A. Inomata; R. Goyette; C. Nelson; S. Bader

doi:10.1103/PhysRevB.61.9653

Exchange-bias effect in Fe/Cr(211) double superlattice structures

J. Jiang, G. Felcher, A. Inomata, R. Goyette, C. Nelson, S. Bader

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35 Scopus citations

Abstract

Shifted hysteresis loops characteristic of the exchange-bias effect between a ferromagnet (F) and an antiferromagnet (AF) are demonstrated in “double-superlattice” structures. Utilizing the well-established oscillatory interlayer exchange coupling in Fe/Cr, we have constructed (Formula presented) double superlattices where Fe/Cr superlattices with appropriate Cr-spacer thickness represent the F and the AF. The double superlattices are (211)-oriented epitaxial films sputter grown on single-crystal MgO(110) substrates. The AF/F interface is coherent compared to conventional exchange-bias interfaces consisting of dissimilar AF and F phases. Magnetization results show that AF/F exchange coupling affects the nucleation of reverse magnetic domains, and that the magnitude of the exchange-bias field is given directly by the classic formula for collinear spin structures. The collinear spin distribution is confirmed by polarized neutron reflectivity.

Original language	English
Pages (from-to)	9653-9656
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	61
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.61.9653
State	Published - 2000
Externally published	Yes

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title = "Exchange-bias effect in Fe/Cr(211) double superlattice structures",

abstract = "Shifted hysteresis loops characteristic of the exchange-bias effect between a ferromagnet (F) and an antiferromagnet (AF) are demonstrated in “double-superlattice” structures. Utilizing the well-established oscillatory interlayer exchange coupling in Fe/Cr, we have constructed (Formula presented) double superlattices where Fe/Cr superlattices with appropriate Cr-spacer thickness represent the F and the AF. The double superlattices are (211)-oriented epitaxial films sputter grown on single-crystal MgO(110) substrates. The AF/F interface is coherent compared to conventional exchange-bias interfaces consisting of dissimilar AF and F phases. Magnetization results show that AF/F exchange coupling affects the nucleation of reverse magnetic domains, and that the magnitude of the exchange-bias field is given directly by the classic formula for collinear spin structures. The collinear spin distribution is confirmed by polarized neutron reflectivity.",

author = "J. Jiang and G. Felcher and A. Inomata and R. Goyette and C. Nelson and S. Bader",

year = "2000",

doi = "10.1103/PhysRevB.61.9653",

language = "English",

volume = "61",

pages = "9653--9656",

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

issn = "1098-0121",

publisher = "American Physical Society",

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TY - JOUR

T1 - Exchange-bias effect in Fe/Cr(211) double superlattice structures

AU - Jiang, J.

AU - Felcher, G.

AU - Inomata, A.

AU - Goyette, R.

AU - Nelson, C.

AU - Bader, S.

PY - 2000

Y1 - 2000

N2 - Shifted hysteresis loops characteristic of the exchange-bias effect between a ferromagnet (F) and an antiferromagnet (AF) are demonstrated in “double-superlattice” structures. Utilizing the well-established oscillatory interlayer exchange coupling in Fe/Cr, we have constructed (Formula presented) double superlattices where Fe/Cr superlattices with appropriate Cr-spacer thickness represent the F and the AF. The double superlattices are (211)-oriented epitaxial films sputter grown on single-crystal MgO(110) substrates. The AF/F interface is coherent compared to conventional exchange-bias interfaces consisting of dissimilar AF and F phases. Magnetization results show that AF/F exchange coupling affects the nucleation of reverse magnetic domains, and that the magnitude of the exchange-bias field is given directly by the classic formula for collinear spin structures. The collinear spin distribution is confirmed by polarized neutron reflectivity.

AB - Shifted hysteresis loops characteristic of the exchange-bias effect between a ferromagnet (F) and an antiferromagnet (AF) are demonstrated in “double-superlattice” structures. Utilizing the well-established oscillatory interlayer exchange coupling in Fe/Cr, we have constructed (Formula presented) double superlattices where Fe/Cr superlattices with appropriate Cr-spacer thickness represent the F and the AF. The double superlattices are (211)-oriented epitaxial films sputter grown on single-crystal MgO(110) substrates. The AF/F interface is coherent compared to conventional exchange-bias interfaces consisting of dissimilar AF and F phases. Magnetization results show that AF/F exchange coupling affects the nucleation of reverse magnetic domains, and that the magnitude of the exchange-bias field is given directly by the classic formula for collinear spin structures. The collinear spin distribution is confirmed by polarized neutron reflectivity.

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Exchange-bias effect in Fe/Cr(211) double superlattice structures

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