Magnetization reversal in [Ni/Pt]6/Pt(x)/[Co/Pt]6 multilayers

Siadou, N.; Androutsopoulos, M.; Panagiotopoulos, I.; Stoleriu, Laurenţiu; Stancu, Alexandru; Bakas, Thomas; Alexandrakis, V.

doi:10.1016/j.jmmm.2011.01.035

Cited by 18 publications

(7 citation statements)

References 40 publications

(45 reference statements)

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“…When the reversal fields are sufficient to switch the hard multilayer a quite strong kinetic effect is observed. The FORC diagrams could be explained as similar results obtained for NdFeB-based permanents magnets [11] and [Ni/Pt] 6 /Pt(x)/[Co/Pt] 6 multilayers [12]. The FORC diagrams of the irreversible processes are shown in Fig.…”

Section: Forc Diagramssupporting

confidence: 79%

Experimental and Micromagnetic First-Order Reversal Curves Analysis in [Ni-Fe/Zn/Co-Ni-N/Ni-Mn] Spin Valves

Pascariu

Postolache

Stancu

et al. 2011

J Supercond Nov Magn

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In this paper we present the results of applying the first-order reversal curves (FORC) diagram experimental method to the analysis of the magnetization processes of [Ni-Fe/Zn/Co-Ni-N/Ni-Mn] electrodeposited spin valve. Our purpose was to study the effect of Co-Ni-N layers thicknesses concerning magnetic properties of these spin-valve sandwiches electrodeposited on the Cu substrate. The FORC diagrams for these systems show the existence of two magnetic phases: a soft magnetic phase (corresponding to NiFe layers) and a hard magnetic one (for Co-Ni-N layers). The largest value of GMR we achieved is 33% at room temperature for the sample [Ni-Fe(140 nm)/Zn(13 nm)/Co-Ni-N(190 nm)/Ni-Mn(160 nm)] granular spin-valve stack.

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Section: Forc Diagramssupporting

confidence: 79%

Experimental and Micromagnetic First-Order Reversal Curves Analysis in [Ni-Fe/Zn/Co-Ni-N/Ni-Mn] Spin Valves

Pascariu

Postolache

Stancu

et al. 2011

J Supercond Nov Magn

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“…The first peak is ascribed to kinetic effects that may be related to magnetic domains with a narrower distribution of coercive fields. 63 In these domains, the magnetization has been shown to relax to its equilibrium position in a time scale that is longer than that of the experiment. 63 Due to this longer relaxation time scale, the ferroelectric polarization does not visibly impact the distribution of these domains.…”

Section: Ferroelectric Training and Characterizationmentioning

confidence: 99%

Ferroelectric Control of Magnetism in Ultrathin HfO₂\Co\Pt Layers

Vermeulen

Ciubotaru

Popovici

et al. 2019

ACS Appl. Mater. Interfaces

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The recent demonstration of ferroelectricity in ultrathin HfO2 has kickstarted a new wave of research into this material. HfO2 in the orthorhombic phase can be considered the first and only truly nanoscale ferroelectric material that is compatible with silicon-based nanoelectronics applications. In this article, we demonstrate the ferroelectric control of the magnetic properties of cobalt deposited on ultrathin aluminum-doped, atomic layer deposition-grown HfO2 (t HfO2 = 6.5 nm). The ferroelectric effect is shown to control the shape of the magnetic hysteresis, quantified here by the magnetic switching energy. Furthermore, the magnetic properties such as the remanence are modulated by up to 41%. We show that this modulation does not only correlate with the charge accumulation at the interface but also shows an additional component associated with the ferroelectric polarization switching. An in-depth analysis using first order reversal curves shows that the coercive and interaction field distributions of cobalt can be modulated up to, respectively, 5.8% and 10.5% with the ferroelectric polarization reversal.

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“…In the FDiag, according to definition (2), this results in a pair of colored spots, which are blue-red (always blue color on the left) for k > 0 and red-blue for k < 0. 21 FDiag of positive or negative interactions within onephase systems [21][22][23][24] as well as for two positively coupled magnetic phases [25][26][27] are abundant in the literature. Nevertheless, round red-blue spots as that appearing in Fig.…”

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confidence: 99%

Magnetostatic interaction in soft magnetic bilayer ribbons unambiguously identified by first-order reversal curve analysis

Rivas

Martínez-García

Škorvánek

et al. 2015

Applied Physics Letters

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Magnetization reversal in [Ni/Pt]6/Pt(x)/[Co/Pt]6 multilayers

Cited by 18 publications

References 40 publications

Experimental and Micromagnetic First-Order Reversal Curves Analysis in [Ni-Fe/Zn/Co-Ni-N/Ni-Mn] Spin Valves

Experimental and Micromagnetic First-Order Reversal Curves Analysis in [Ni-Fe/Zn/Co-Ni-N/Ni-Mn] Spin Valves

Ferroelectric Control of Magnetism in Ultrathin HfO₂\Co\Pt Layers

Magnetostatic interaction in soft magnetic bilayer ribbons unambiguously identified by first-order reversal curve analysis

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Magnetization reversal in [Ni/Pt]6/Pt(x)/[Co/Pt]6 multilayers

Cited by 18 publications

References 40 publications

Experimental and Micromagnetic First-Order Reversal Curves Analysis in [Ni-Fe/Zn/Co-Ni-N/Ni-Mn] Spin Valves

Experimental and Micromagnetic First-Order Reversal Curves Analysis in [Ni-Fe/Zn/Co-Ni-N/Ni-Mn] Spin Valves

Ferroelectric Control of Magnetism in Ultrathin HfO2\Co\Pt Layers

Magnetostatic interaction in soft magnetic bilayer ribbons unambiguously identified by first-order reversal curve analysis

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Ferroelectric Control of Magnetism in Ultrathin HfO₂\Co\Pt Layers