Magnetic anisotropy studies in Ce/Fe and U/Fe multilayers

M. F. Thomas; G. S. Case; J. Bland; C. A. Lucas; A. Herring; W. G. Stirling; P. Boni; S. Tixier; R. C.C. Ward; M. R. Wells; S. Langridge

doi:10.1002/1521-396X(200202)189:2<537::AID-PSSA537>3.0.CO;2-8

Magnetic anisotropy studies in Ce/Fe and U/Fe multilayers

M. F. Thomas, G. S. Case, J. Bland, C. A. Lucas, A. Herring, W. G. Stirling, P. Boni, S. Tixier, R. C.C. Ward, M. R. Wells, S. Langridge

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2 Scopus citations

Abstract

Multilayer samples of Ce/Fe, fabricated by sputtering and characterized by X-ray diffraction and reflectivity were studied by polarized neutron reflectivity and Mössbauer spectroscopy. Corresponding studies on sputtered U/Fe multilayers have been initiated. In Fe/Ce a paramagnetic phase, identified as amorphous Fe was observed at Fe thicknesses below 20 Å. Perpendicular magnetic anisotropy was observed for Fe thicknesses below 17 Å and studies in applied fields enabled magnetic anisotropies to be evaluated for Fe thicknesses up to 40 Å. The Ce/Fe interface anisotropy was evaluated as K_s = (0.98 ± 0.15) × 10^-3 Jm^-2, among the largest values reported. Neutron reflectivity results did not observe magnetic moments on Ce layers. Preliminary measurements on U/Fe multilayers have not observed induced moments on the U layer.

Original language	English
Pages (from-to)	537-543
Number of pages	7
Journal	Physica Status Solidi (A) Applied Research
Volume	189
Issue number	2
DOIs	https://doi.org/10.1002/1521-396X(200202)189:2<537::AID-PSSA537>3.0.CO;2-8
State	Published - Feb 2002
Externally published	Yes

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title = "Magnetic anisotropy studies in Ce/Fe and U/Fe multilayers",

abstract = "Multilayer samples of Ce/Fe, fabricated by sputtering and characterized by X-ray diffraction and reflectivity were studied by polarized neutron reflectivity and M{\"o}ssbauer spectroscopy. Corresponding studies on sputtered U/Fe multilayers have been initiated. In Fe/Ce a paramagnetic phase, identified as amorphous Fe was observed at Fe thicknesses below 20 {\AA}. Perpendicular magnetic anisotropy was observed for Fe thicknesses below 17 {\AA} and studies in applied fields enabled magnetic anisotropies to be evaluated for Fe thicknesses up to 40 {\AA}. The Ce/Fe interface anisotropy was evaluated as Ks = (0.98 ± 0.15) × 10-3 Jm-2, among the largest values reported. Neutron reflectivity results did not observe magnetic moments on Ce layers. Preliminary measurements on U/Fe multilayers have not observed induced moments on the U layer.",

author = "Thomas, {M. F.} and Case, {G. S.} and J. Bland and Lucas, {C. A.} and A. Herring and Stirling, {W. G.} and P. Boni and S. Tixier and Ward, {R. C.C.} and Wells, {M. R.} and S. Langridge",

year = "2002",

month = feb,

doi = "10.1002/1521-396X(200202)189:2<537::AID-PSSA537>3.0.CO;2-8",

language = "English",

volume = "189",

pages = "537--543",

journal = "Physica Status Solidi (A) Applied Research",

issn = "0031-8965",

publisher = "Wiley-VCH Verlag",

number = "2",

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TY - JOUR

T1 - Magnetic anisotropy studies in Ce/Fe and U/Fe multilayers

AU - Thomas, M. F.

AU - Case, G. S.

AU - Bland, J.

AU - Lucas, C. A.

AU - Herring, A.

AU - Stirling, W. G.

AU - Boni, P.

AU - Tixier, S.

AU - Ward, R. C.C.

AU - Wells, M. R.

AU - Langridge, S.

PY - 2002/2

Y1 - 2002/2

N2 - Multilayer samples of Ce/Fe, fabricated by sputtering and characterized by X-ray diffraction and reflectivity were studied by polarized neutron reflectivity and Mössbauer spectroscopy. Corresponding studies on sputtered U/Fe multilayers have been initiated. In Fe/Ce a paramagnetic phase, identified as amorphous Fe was observed at Fe thicknesses below 20 Å. Perpendicular magnetic anisotropy was observed for Fe thicknesses below 17 Å and studies in applied fields enabled magnetic anisotropies to be evaluated for Fe thicknesses up to 40 Å. The Ce/Fe interface anisotropy was evaluated as Ks = (0.98 ± 0.15) × 10-3 Jm-2, among the largest values reported. Neutron reflectivity results did not observe magnetic moments on Ce layers. Preliminary measurements on U/Fe multilayers have not observed induced moments on the U layer.

AB - Multilayer samples of Ce/Fe, fabricated by sputtering and characterized by X-ray diffraction and reflectivity were studied by polarized neutron reflectivity and Mössbauer spectroscopy. Corresponding studies on sputtered U/Fe multilayers have been initiated. In Fe/Ce a paramagnetic phase, identified as amorphous Fe was observed at Fe thicknesses below 20 Å. Perpendicular magnetic anisotropy was observed for Fe thicknesses below 17 Å and studies in applied fields enabled magnetic anisotropies to be evaluated for Fe thicknesses up to 40 Å. The Ce/Fe interface anisotropy was evaluated as Ks = (0.98 ± 0.15) × 10-3 Jm-2, among the largest values reported. Neutron reflectivity results did not observe magnetic moments on Ce layers. Preliminary measurements on U/Fe multilayers have not observed induced moments on the U layer.

UR - http://www.scopus.com/inward/record.url?scp=0036475078&partnerID=8YFLogxK

U2 - 10.1002/1521-396X(200202)189:2<537::AID-PSSA537>3.0.CO;2-8

DO - 10.1002/1521-396X(200202)189:2<537::AID-PSSA537>3.0.CO;2-8

M3 - Article

AN - SCOPUS:0036475078

SN - 0031-8965

VL - 189

SP - 537

EP - 543

JO - Physica Status Solidi (A) Applied Research

JF - Physica Status Solidi (A) Applied Research

IS - 2

ER -

Magnetic anisotropy studies in Ce/Fe and U/Fe multilayers

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