Magnetic anisotropy of Co/Ni/Co/Pt multilayers

P.J.H. Bloemen; W.J.M. de Jonge

doi:10.1016/0304-8853(92)90130-G

Magnetic anisotropy of Co/Ni/Co/Pt multilayers

P.J.H. Bloemen
, W.J.M. de Jonge

Applied Physics and Science Education

Research output: Contribution to journal › Letter › Academic › peer-review

12 Citations (Scopus)

Abstract

The magnetic anisotropy and saturation magnetization of a series of 30 × (2 Å Co+x Å Ni+2 Å Co+10 Å Pt) multilayers, grown in the (111) orientation, has been investigated for Ni thickness ranging from 2 to 56 Å. Vibrating sample magnetometry showed that the easy axis of the multilayers switches from perpendicular to along the film-plane above a Ni thickness of 48 Å. The fact that this transition takes place at a thickness much larger than for example observed for Co/Pd or Co/Pt multilayers, is because in the present multilayers the relatively low shape anisotropy of the Ni is combined with the large Co/Pt surface anisotropy. From the measurements a value for the Co/Ni surface anisotropy of (0.29±0.06) mJ/m², favouring a perpendicular easy axis, is estimated. Also results on X-ray diffraction, Kerr rotation and temperature dependent magnetization experiments are presented.

Original language	English
Pages (from-to)	L1-L6
Journal	Journal of Magnetism and Magnetic Materials
Volume	116
Issue number	1-2
DOIs	https://doi.org/10.1016/0304-8853(92)90130-G
Publication status	Published - 1 Oct 1992

Funding

This work was partiallys upportebdy the European CommunityS cienceP rogram:G rowth and Physical Propertieso f Metallic Magnetic Multi-layers( projectn o. SC1-0387-C)T. he authorsa re indebtedto S.T. Purcell for drawingt he attention to this projecta nd his effortsi n the earlys tageo f the experimentT.h e authorsa lso wish to thank H.C. Donkerslooat nd J. Kerkhof for the vapor depositiono f the multilayersG, .J.C.M. Schulten and A. Mud for experimentaasl sistancaen dW.B. Zeper for the Kerr rotationc alculations.

Access to Document

10.1016/0304-8853(92)90130-G

Cite this

@article{ae0ff3aabd56498dabed789b7747ec47,

title = "Magnetic anisotropy of Co/Ni/Co/Pt multilayers",

abstract = "The magnetic anisotropy and saturation magnetization of a series of 30 {\texttimes} (2 {\AA} Co+x {\AA} Ni+2 {\AA} Co+10 {\AA} Pt) multilayers, grown in the (111) orientation, has been investigated for Ni thickness ranging from 2 to 56 {\AA}. Vibrating sample magnetometry showed that the easy axis of the multilayers switches from perpendicular to along the film-plane above a Ni thickness of 48 {\AA}. The fact that this transition takes place at a thickness much larger than for example observed for Co/Pd or Co/Pt multilayers, is because in the present multilayers the relatively low shape anisotropy of the Ni is combined with the large Co/Pt surface anisotropy. From the measurements a value for the Co/Ni surface anisotropy of (0.29±0.06) mJ/m2, favouring a perpendicular easy axis, is estimated. Also results on X-ray diffraction, Kerr rotation and temperature dependent magnetization experiments are presented.",

author = "P.J.H. Bloemen and \{de Jonge\}, W.J.M.",

year = "1992",

month = oct,

day = "1",

doi = "10.1016/0304-8853(92)90130-G",

language = "English",

volume = "116",

pages = "L1--L6",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Magnetic anisotropy of Co/Ni/Co/Pt multilayers

AU - Bloemen, P.J.H.

AU - de Jonge, W.J.M.

PY - 1992/10/1

Y1 - 1992/10/1

N2 - The magnetic anisotropy and saturation magnetization of a series of 30 × (2 Å Co+x Å Ni+2 Å Co+10 Å Pt) multilayers, grown in the (111) orientation, has been investigated for Ni thickness ranging from 2 to 56 Å. Vibrating sample magnetometry showed that the easy axis of the multilayers switches from perpendicular to along the film-plane above a Ni thickness of 48 Å. The fact that this transition takes place at a thickness much larger than for example observed for Co/Pd or Co/Pt multilayers, is because in the present multilayers the relatively low shape anisotropy of the Ni is combined with the large Co/Pt surface anisotropy. From the measurements a value for the Co/Ni surface anisotropy of (0.29±0.06) mJ/m2, favouring a perpendicular easy axis, is estimated. Also results on X-ray diffraction, Kerr rotation and temperature dependent magnetization experiments are presented.

AB - The magnetic anisotropy and saturation magnetization of a series of 30 × (2 Å Co+x Å Ni+2 Å Co+10 Å Pt) multilayers, grown in the (111) orientation, has been investigated for Ni thickness ranging from 2 to 56 Å. Vibrating sample magnetometry showed that the easy axis of the multilayers switches from perpendicular to along the film-plane above a Ni thickness of 48 Å. The fact that this transition takes place at a thickness much larger than for example observed for Co/Pd or Co/Pt multilayers, is because in the present multilayers the relatively low shape anisotropy of the Ni is combined with the large Co/Pt surface anisotropy. From the measurements a value for the Co/Ni surface anisotropy of (0.29±0.06) mJ/m2, favouring a perpendicular easy axis, is estimated. Also results on X-ray diffraction, Kerr rotation and temperature dependent magnetization experiments are presented.

UR - https://www.scopus.com/pages/publications/0026938340

U2 - 10.1016/0304-8853(92)90130-G

DO - 10.1016/0304-8853(92)90130-G

M3 - Letter

AN - SCOPUS:0026938340

SN - 0304-8853

VL - 116

SP - L1-L6

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1-2

ER -

Magnetic anisotropy of Co/Ni/Co/Pt multilayers

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this