Orientational and thickness dependence of interfacial magnetocrystalline anisotropy in Co/Cu superlattices

Miyoung Kim; Lieping Zhong; Xindong Wang; A. J. Freeman

doi:10.1016/S0304-8853(98)00094-8

Orientational and thickness dependence of interfacial magnetocrystalline anisotropy in Co/Cu superlattices

Miyoung Kim^*, Lieping Zhong, Xindong Wang, A. J. Freeman

^*Corresponding author for this work

Physics and Astronomy

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

Abstract

The interface magnetocrystalline anisotropy (MCA) of (0 0 1), (1 1 0) and (1 1 1) oriented Co/Cu_n superlattices (n ≤ 5) was investigated by means of the full potential linearized augmented-plane-wave (FLAPW) method. The results show a marked dependence of the interface MCA on both the orientation and the thickness of the Cu layer. For (0 0 1) oriented superlattices, the small value of the interface MCA with one Cu layer increases significantly as more Cu layers are added. In contrast, the interface MCA of (1 1 0) and (1 1 1) oriented superlattices are not sensitive to the number of Cu layers. The interface MCA is large and positive in the (0 0 1) orientation for n = 3 and 5 and slightly positive in the (1 1 1) orientation for n = 2 and 5, corresponding to a perpendicular easy axis while the (1 1 O) oriented superlattices show in-plane easy axis.

Original language	English (US)
Pages (from-to)	277-282
Number of pages	6
Journal	Journal of Magnetism and Magnetic Materials
Volume	186
Issue number	3
DOIs	https://doi.org/10.1016/S0304-8853(98)00094-8
State	Published - Jul 15 1998

Keywords

Anisotropy - interface
Anisotropy - magnetocrystalline
Superlattices

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Orientational and thickness dependence of interfacial magnetocrystalline anisotropy in Co/Cu superlattices",

abstract = "The interface magnetocrystalline anisotropy (MCA) of (0 0 1), (1 1 0) and (1 1 1) oriented Co/Cun superlattices (n ≤ 5) was investigated by means of the full potential linearized augmented-plane-wave (FLAPW) method. The results show a marked dependence of the interface MCA on both the orientation and the thickness of the Cu layer. For (0 0 1) oriented superlattices, the small value of the interface MCA with one Cu layer increases significantly as more Cu layers are added. In contrast, the interface MCA of (1 1 0) and (1 1 1) oriented superlattices are not sensitive to the number of Cu layers. The interface MCA is large and positive in the (0 0 1) orientation for n = 3 and 5 and slightly positive in the (1 1 1) orientation for n = 2 and 5, corresponding to a perpendicular easy axis while the (1 1 O) oriented superlattices show in-plane easy axis.",

keywords = "Anisotropy - interface, Anisotropy - magnetocrystalline, Superlattices",

author = "Miyoung Kim and Lieping Zhong and Xindong Wang and Freeman, {A. J.}",

year = "1998",

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doi = "10.1016/S0304-8853(98)00094-8",

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journal = "Journal of Magnetism and Magnetic Materials",

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TY - JOUR

T1 - Orientational and thickness dependence of interfacial magnetocrystalline anisotropy in Co/Cu superlattices

AU - Kim, Miyoung

AU - Zhong, Lieping

AU - Wang, Xindong

AU - Freeman, A. J.

PY - 1998/7/15

Y1 - 1998/7/15

N2 - The interface magnetocrystalline anisotropy (MCA) of (0 0 1), (1 1 0) and (1 1 1) oriented Co/Cun superlattices (n ≤ 5) was investigated by means of the full potential linearized augmented-plane-wave (FLAPW) method. The results show a marked dependence of the interface MCA on both the orientation and the thickness of the Cu layer. For (0 0 1) oriented superlattices, the small value of the interface MCA with one Cu layer increases significantly as more Cu layers are added. In contrast, the interface MCA of (1 1 0) and (1 1 1) oriented superlattices are not sensitive to the number of Cu layers. The interface MCA is large and positive in the (0 0 1) orientation for n = 3 and 5 and slightly positive in the (1 1 1) orientation for n = 2 and 5, corresponding to a perpendicular easy axis while the (1 1 O) oriented superlattices show in-plane easy axis.

AB - The interface magnetocrystalline anisotropy (MCA) of (0 0 1), (1 1 0) and (1 1 1) oriented Co/Cun superlattices (n ≤ 5) was investigated by means of the full potential linearized augmented-plane-wave (FLAPW) method. The results show a marked dependence of the interface MCA on both the orientation and the thickness of the Cu layer. For (0 0 1) oriented superlattices, the small value of the interface MCA with one Cu layer increases significantly as more Cu layers are added. In contrast, the interface MCA of (1 1 0) and (1 1 1) oriented superlattices are not sensitive to the number of Cu layers. The interface MCA is large and positive in the (0 0 1) orientation for n = 3 and 5 and slightly positive in the (1 1 1) orientation for n = 2 and 5, corresponding to a perpendicular easy axis while the (1 1 O) oriented superlattices show in-plane easy axis.

KW - Anisotropy - interface

KW - Anisotropy - magnetocrystalline

KW - Superlattices

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