Magnetic anisotropy of multilayers

Broeder, F. J. A. den; Hoving, W.; Bloemen, P.J.H.

doi:10.1016/0304-8853(91)90404-x

Cited by 483 publications

(250 citation statements)

References 16 publications

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“…[1][2][3][4][5][6][7] Most CoL have been prepared employing molecular beam sputtering, 8 evaporation techniques, 9,10 and more recently, electrodeposition. [11][12][13][14][15][16][17][18][19][20][21] Although it is well known that electrodeposition contributes to achieving reliable and inexpensive methods to produce CoL on metallic substrates, [22][23][24][25] to the best of our knowledge, few studies have considered Co electrodeposition on Pt electrodes.…”

Section: Introductionmentioning

confidence: 99%

Kinetical study about the cobalt electrodeposition onto polycrystalline platinum

Ríos-Reyes¹,

Mendoza-Huízar²,

Reyes-Cruz³

et al. 2013

Quím. Nova

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Recebido em 2/10/12; aceito em 25/2/13; publicado na web em 24/5/13An electrochemical study of Co electrodeposition onto polycrystalline Pt from an aqueous solution containing 10 −2 M CoCl 2 + 1 M NH 4 CI (pH = 9.3) was conducted at overpotential conditions. The current density transients showed two maxima that corresponded to two nucleation and growth processes. The entire transient behavior was adequately predicted considering the contribution to the total current of four different processes: a Langmuir-type adsorption process, a diffusion-controlled twodimensional instantaneous nucleation, and two three-dimensional nucleation and growth processes.

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Section: Introductionmentioning

confidence: 99%

Kinetical study about the cobalt electrodeposition onto polycrystalline platinum

Ríos-Reyes¹,

Mendoza-Huízar²,

Reyes-Cruz³

et al. 2013

Quím. Nova

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“…The directional free energy density of a magnetic thin film in second-order approximation F is given by [50,51] …”

Section: Extracting the Magnetic Anisotropy Constantsmentioning

confidence: 99%

“…As a proof of principle for the proposed structure-factor modulation we use the evolution of the domain sizes to determine the magnetic anisotropy of the Co/Pd multilayers. In the second-order anisotropy approximation a phase diagram [48][49][50]52] (in the K 1,eff /K 2 plane) is put forward. In the range -2K 2 K 1,eff < 0 magnetization canting takes place, separating the out-of-plane orientation for K 1,eff 0 and the in-plane orientation for K 1,eff < -2K 2 .…”

Section: Extracting the Magnetic Anisotropy Constantsmentioning

confidence: 99%

Employing soft x-ray resonant magnetic scattering to study domain sizes and anisotropy in Co/Pd multilayers

Bagschik

Frömter

Bach³

et al. 2016

Phys. Rev. B

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It is demonstrated that the magnetic diffraction pattern of the isotropic disordered maze pattern is well described utilizing a gamma distribution of domain sizes in a one-dimensional model. From the analysis, the mean domain size and the shape parameter of the distribution are obtained. The model reveals an average domain size that is significantly different from the value that is determined from the peak position of the structure factor in reciprocal space. As a proof of principle, a wedge-shaped (Co tÅ /Pd 10Å ) 8 multilayer film, that covers the thickness range of the spin-reorientation transition, has been used. By means of soft x-ray resonant magnetic scattering (XRMS) and imaging techniques the thickness-driven evolution of the magnetic properties of the cobalt layers is explored. It is shown that minute changes of the domain pattern concerning domain size and geometry can be investigated and analyzed due to the high sensitivity and lateral resolution of the XRMS technique. The latter allows for the determination of the magnetic anisotropies of the cobalt layers within a thickness range of a few angstroms.

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“…For Co layers up to 1.6 nm, the interface anisotropy dominates over volume anisotropy and leads to a magnetic easy axis perpendicular to the interfaces. 16 The effect can be enhanced by the magnetostriction of interfacial Co-Pd alloys. 17 On the other hand, the interface anisotropy is reduced by an increasing interface roughness.…”

Section: Introductionmentioning

confidence: 99%

Magnetoresistive effects in Co/Pd multilayers on self-assembled nanoparticles (invited)

Moser¹,

Kunej²,

Pernau³

et al. 2010

Journal of Applied Physics

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The deposition of Co/Pd multilayers onto self-assembled spherical particles provides a system with unique magnetic properties. The magnetic caps have high perpendicular magnetic anisotropy, are single-domain, and strongly exchange decoupled, but in electrical contact with each other, thus enabling magnetotransport measurements. By applying an external magnetic field, the caps can be switched individually. We systematically studied the magnetoresistance on a two-dimensional cap array consisting of Co/Pd multilayers deposited on particles with a diameter of 200 nm. In the vicinity of the coercive field, a hysteretic resistance peak occurs. It can be explained with the random magnetization configuration of the magnetic caps leading to an increased spin-dependent scattering of the conduction electrons. The underlying mechanism might be comparable to the one causing giant magnetoresistance in granular alloys. For temperatures above 77 K, additional resistivity contributions with high saturation fields are observed, which are tentatively explained by the decreasing size of magnetically ordered parts of the caps with increasing temperature, resulting finally in superparamagnetic behavior in the contact area between neighboring caps.

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Magnetic anisotropy of multilayers

Cited by 483 publications

References 16 publications

Kinetical study about the cobalt electrodeposition onto polycrystalline platinum

Kinetical study about the cobalt electrodeposition onto polycrystalline platinum

Employing soft x-ray resonant magnetic scattering to study domain sizes and anisotropy in Co/Pd multilayers

Magnetoresistive effects in Co/Pd multilayers on self-assembled nanoparticles (invited)

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