High magnetization FeCoPd multilayers

M. J. Walock; H. Ambaye; M. Chshiev; F. R. Klose; W. H. Butler; G. J. Mankey

doi:10.1116/1.2830631

High magnetization FeCoPd multilayers

M. J. Walock, H. Ambaye, M. Chshiev, F. R. Klose, W. H. Butler, G. J. Mankey

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

2 Scopus citations

Abstract

We have fabricated multilayer samples with varying superlattice periodicity and interlayer thicknesses to determine the nature of the enhanced moment in this intriguing thin film system. Magnetic characterization experiments show an enhanced magnetic moment in the multilayers as compared to a single layer film containing the same amount of FeCo. However, since the magnetization is defined as the magnetic moment divided by the sample volume, the sample exhibits an overall reduction in the magnetization when the volume of the Pd layers is also taken into account. Our experimental findings are also supported by theoretical calculations which identify the origin of the increased magnetic moment in the multilayer system. Polarized neutron reflectivity experiments will be used to determine the lateral distribution of the magnetization in a number of superlattice samples.

Original language	English
Pages (from-to)	731-734
Number of pages	4
Journal	Journal of Vacuum Science and Technology, Part A: Vacuum, Surfaces and Films
Volume	26
Issue number	4
DOIs	https://doi.org/10.1116/1.2830631
State	Published - 2008
Externally published	Yes

Funding

This research work was funded by the U.S. Department of Energy and by NSF Materials Research Science and Engineering Center program through Grant No. NSF-DMR 0213985. This work was also partly supported by Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725.

Funders	Funder number
U.S. Department of Energy	NSF-DMR 0213985
Oak Ridge National Laboratory	DE-AC05-00OR22725

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title = "High magnetization FeCoPd multilayers",

abstract = "We have fabricated multilayer samples with varying superlattice periodicity and interlayer thicknesses to determine the nature of the enhanced moment in this intriguing thin film system. Magnetic characterization experiments show an enhanced magnetic moment in the multilayers as compared to a single layer film containing the same amount of FeCo. However, since the magnetization is defined as the magnetic moment divided by the sample volume, the sample exhibits an overall reduction in the magnetization when the volume of the Pd layers is also taken into account. Our experimental findings are also supported by theoretical calculations which identify the origin of the increased magnetic moment in the multilayer system. Polarized neutron reflectivity experiments will be used to determine the lateral distribution of the magnetization in a number of superlattice samples.",

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AU - Walock, M. J.

AU - Ambaye, H.

AU - Chshiev, M.

AU - Klose, F. R.

AU - Butler, W. H.

AU - Mankey, G. J.

PY - 2008

Y1 - 2008

N2 - We have fabricated multilayer samples with varying superlattice periodicity and interlayer thicknesses to determine the nature of the enhanced moment in this intriguing thin film system. Magnetic characterization experiments show an enhanced magnetic moment in the multilayers as compared to a single layer film containing the same amount of FeCo. However, since the magnetization is defined as the magnetic moment divided by the sample volume, the sample exhibits an overall reduction in the magnetization when the volume of the Pd layers is also taken into account. Our experimental findings are also supported by theoretical calculations which identify the origin of the increased magnetic moment in the multilayer system. Polarized neutron reflectivity experiments will be used to determine the lateral distribution of the magnetization in a number of superlattice samples.

AB - We have fabricated multilayer samples with varying superlattice periodicity and interlayer thicknesses to determine the nature of the enhanced moment in this intriguing thin film system. Magnetic characterization experiments show an enhanced magnetic moment in the multilayers as compared to a single layer film containing the same amount of FeCo. However, since the magnetization is defined as the magnetic moment divided by the sample volume, the sample exhibits an overall reduction in the magnetization when the volume of the Pd layers is also taken into account. Our experimental findings are also supported by theoretical calculations which identify the origin of the increased magnetic moment in the multilayer system. Polarized neutron reflectivity experiments will be used to determine the lateral distribution of the magnetization in a number of superlattice samples.

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High magnetization FeCoPd multilayers

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