Perpendicular magnetic anisotropy of the epitaxial fcc Co/60-Å-Ni/Cu(001) system

Lee, Jae Yong; Lauhoff, G.; Bland, J. A. C.

doi:10.1103/physrevb.56.r5728

Cited by 35 publications

(30 citation statements)

References 16 publications

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“…10 We have recently shown that for Cu/Co/60 Å Ni/Cu/Si͑001͒ structures the Co layer grows without strain for this Ni thickness and thereby the magnetoelastic anisotropy is expected to be minimal for such Co films. 11 The analysis of the magneto-optic Kerr effect ͑MOKE͒ magnetometry measurements on these structures corroborates this view. 11 However, as in other studies on fcc Co films, 7,10-13 the magnetic anisotropy energies determined in this study are based on the assumption of bulklike magnetic moments.…”

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confidence: 53%

“…11 The analysis of the magneto-optic Kerr effect ͑MOKE͒ magnetometry measurements on these structures corroborates this view. 11 However, as in other studies on fcc Co films, 7,10-13 the magnetic anisotropy energies determined in this study are based on the assumption of bulklike magnetic moments. Surprisingly large changes in the magnetic moments have been recently observed for example for epitaxial Cu/Ni/Cu͑001͒ sandwiches 14 and Ni/Cu͑001͒ thin films.…”

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confidence: 53%

“…It was previously confirmed by MOKE magnetometry that this field is sufficient to saturate the magnetization of the samples studied. 11,23 The beam polarization has been found to be better than 96% and all data given are corrected correspondingly. For fitting the PNR data, bulk scattering densities are assumed and the magnetic moments and layer thicknesses are adjusted.…”

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Origin of the Co uniaxial volume anisotropy of the fcc Co/Ni/Cu(001) system

et al. 1999

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We studied layer selectively the magnetic moments on a Cu/9 Å Co/50 Å Ni/Cu/Si͑001͒ and a Cu/50 Å Ni/Cu/Si͑001͒ structure using polarized neutron reflection. The magnetic moments for the Cu/Co/Ni/Cu structure are 1.70Ϯ0.20 B and 0.57Ϯ0.05 B for the Co and Ni, respectively, and within error the same as the relevant bulk magnetic moments at room temperature. For the Cu/Ni/Cu sample the magnetic moment per Ni atom of 0.53Ϯ0.03 B is only slightly lower than the bulk value. Within error the same magnetic moments are determined for a Cu/22 Å Co/11 Å Cu/53 Å Ni/Cu/Si͑001͒ structure supporting the results on the Cu/Co/Ni/Cu͑001͒ and Cu/Ni/Cu͑001͒ structures. Using the magnetic moments values determined by polarized neutron reflection, we conclude that the uniaxial Co volume anisotropy for the Cu/Co/60 Å Ni/Cu͑001͒ structures can be attributed to the Co shape anisotropy alone.

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Origin of the Co uniaxial volume anisotropy of the fcc Co/Ni/Cu(001) system

et al. 1999

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“…The results of this analysis, however, can be generalized for and applied to real thin film systems. The direction of magnetization for example can be rotated by covering magnetic films with a different material [24]. If the coverage is partially (submonolayer) a locally varying anisotropy is created with lateral dimensions determined by the size of the adlayer islands.…”

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confidence: 99%

Magnetic configurations in anisotropic stripe systems

Porrati

Oepen

Kirschner

2004

Journal of Magnetism and Magnetic Materials

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“…Most of the recent growth in magnetic thin film has led to new discoveries and better understanding of the magnetic and electronic properties of the systems. Studies of perpendicular magnetic anisotropy (PMA) have mainly grown magnetic films on a nonmagnetic metal or multilayers with nonmagnetic spacers in order to increase the surface/interface effects [2]. Recently, Co/Ni thin film system has been studied on semiconductor substrates during isothermal annealing processes [3].…”

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confidence: 99%