Antiferromagnetic coupling between Co/Ni multilayers with perpendicular magnetization across MBE-grown Cu(111) layers

P. J.H. Bloemen, M. T. Johnson, J. aan de Stegge, W. J.M. de Jonge

Research output: Contribution to journalLetterAcademicpeer-review

9 Citations (Scopus)

Abstract

A cleat oscillatory exchange coupling has been observed for an epitaxial (111) M1/Cu/M2 structure, grown by Molecular Beam Epitaxy (MBE) on a single crystal Cu(111) substrate. The magnetic layers M1 and M2 were designed to have perpendicular easy axis by using Co/Ni multilayers. The Cu layer was deposited in the form of a wedge. The magneto-optically measured hysteresis loops show, in the case of antiferromagnetic (AF) coupling, clear first-order spin-flip transitions between the saturated and antiparallel states. Signatures of a ferromagnetic or biquadratic component, observed earlier in loops of an AF coupled Co/Cu/Co(111) sandwich, were absent in the present loops. The absence of these signatures is believed to be a consequence of the relatively strong (perpendicular) uniaxial anisotropy of the present samples.

LanguageEnglish
PagesL315-L319
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume116
Issue number3
DOIs
StatePublished - 2 Oct 1992

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Exchange coupling
Hysteresis loops
Molecular beam epitaxy
Magnetization
Multilayers
Anisotropy
molecular beam epitaxy
Single crystals
magnetization
Substrates
signatures
wedges
hysteresis
anisotropy
single crystals

Cite this

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title = "Antiferromagnetic coupling between Co/Ni multilayers with perpendicular magnetization across MBE-grown Cu(111) layers",
abstract = "A cleat oscillatory exchange coupling has been observed for an epitaxial (111) M1/Cu/M2 structure, grown by Molecular Beam Epitaxy (MBE) on a single crystal Cu(111) substrate. The magnetic layers M1 and M2 were designed to have perpendicular easy axis by using Co/Ni multilayers. The Cu layer was deposited in the form of a wedge. The magneto-optically measured hysteresis loops show, in the case of antiferromagnetic (AF) coupling, clear first-order spin-flip transitions between the saturated and antiparallel states. Signatures of a ferromagnetic or biquadratic component, observed earlier in loops of an AF coupled Co/Cu/Co(111) sandwich, were absent in the present loops. The absence of these signatures is believed to be a consequence of the relatively strong (perpendicular) uniaxial anisotropy of the present samples.",
author = "Bloemen, {P. J.H.} and Johnson, {M. T.} and {aan de Stegge}, J. and {de Jonge}, {W. J.M.}",
year = "1992",
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doi = "10.1016/0304-8853(92)90108-Z",
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Antiferromagnetic coupling between Co/Ni multilayers with perpendicular magnetization across MBE-grown Cu(111) layers. / Bloemen, P. J.H.; Johnson, M. T.; aan de Stegge, J.; de Jonge, W. J.M.

In: Journal of Magnetism and Magnetic Materials, Vol. 116, No. 3, 02.10.1992, p. L315-L319.

Research output: Contribution to journalLetterAcademicpeer-review

TY - JOUR

T1 - Antiferromagnetic coupling between Co/Ni multilayers with perpendicular magnetization across MBE-grown Cu(111) layers

AU - Bloemen,P. J.H.

AU - Johnson,M. T.

AU - aan de Stegge,J.

AU - de Jonge,W. J.M.

PY - 1992/10/2

Y1 - 1992/10/2

N2 - A cleat oscillatory exchange coupling has been observed for an epitaxial (111) M1/Cu/M2 structure, grown by Molecular Beam Epitaxy (MBE) on a single crystal Cu(111) substrate. The magnetic layers M1 and M2 were designed to have perpendicular easy axis by using Co/Ni multilayers. The Cu layer was deposited in the form of a wedge. The magneto-optically measured hysteresis loops show, in the case of antiferromagnetic (AF) coupling, clear first-order spin-flip transitions between the saturated and antiparallel states. Signatures of a ferromagnetic or biquadratic component, observed earlier in loops of an AF coupled Co/Cu/Co(111) sandwich, were absent in the present loops. The absence of these signatures is believed to be a consequence of the relatively strong (perpendicular) uniaxial anisotropy of the present samples.

AB - A cleat oscillatory exchange coupling has been observed for an epitaxial (111) M1/Cu/M2 structure, grown by Molecular Beam Epitaxy (MBE) on a single crystal Cu(111) substrate. The magnetic layers M1 and M2 were designed to have perpendicular easy axis by using Co/Ni multilayers. The Cu layer was deposited in the form of a wedge. The magneto-optically measured hysteresis loops show, in the case of antiferromagnetic (AF) coupling, clear first-order spin-flip transitions between the saturated and antiparallel states. Signatures of a ferromagnetic or biquadratic component, observed earlier in loops of an AF coupled Co/Cu/Co(111) sandwich, were absent in the present loops. The absence of these signatures is believed to be a consequence of the relatively strong (perpendicular) uniaxial anisotropy of the present samples.

UR - http://www.scopus.com/inward/record.url?scp=0027109545&partnerID=8YFLogxK

U2 - 10.1016/0304-8853(92)90108-Z

DO - 10.1016/0304-8853(92)90108-Z

M3 - Letter

VL - 116

SP - L315-L319

JO - Journal of Magnetism and Magnetic Materials

T2 - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 3

ER -