Diamagnetic coupling for magnetic tuning in nano-thin films

Vopson, Melvin; Belusky, Michal; Lepadatu, Serban

doi:10.1063/5.0008482

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…A very good agreement is obtained with the two-sublattice Exchange bias may also be modelled by simulating a bilayer consisting of an antiferromagnetic and a ferromagnetic mesh. The effective exchange bias field, first observed by Meikeljohn and Bean [86], coincides with the bilinear surface exchange field of Equation (5), thus exchange bias may be included by enabling the surface exchange fields at the interface between antiferromagnetic and ferromagnetic meshes [87]. By including such coupling terms between the ferromagnetic spins and one or both antiferromagnetic sub-lattices, uncompensated spins as well as compensated spins [88] may be simulated.…”

Section: Two-sublattice Modelmentioning

confidence: 79%

“…( 5); thus, exchange bias may be included by enabling the surface exchange fields at the interface between antiferromagnetic and ferromagnetic meshes. 97 By including such coupling terms between the ferromagnetic spins and one or both antiferromagnetic sublattices, uncompensated spins as well as compensated spins 98 may be simulated. This subject, however, is beyond the scope of the current work and will be addressed in a separate publication.…”

Section: Journal Of Applied Physicsmentioning

confidence: 99%

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Boris computational spintronics—High performance multi-mesh magnetic and spin transport modeling software

Lepadatu

2020

Journal of Applied Physics

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This work discusses the design and testing of a new computational spintronics research software. Boris is a comprehensive multi-physics open-source software, combining micromagnetics modeling capabilities with drift-diffusion spin transport modeling and a heat flow solver in multi-material structures. A multi-mesh paradigm is employed, allowing modeling of complex multi-layered structures with independent discretization and arbitrary relative positioning between different computational meshes. Implemented micromagnetics models include not only ferromagnetic materials modeling, but also two-sublattice models, allowing simulations of antiferromagnetic and ferrimagnetic materials, fully integrated into the multi-mesh and multi-material design approach. High computational performance is an important design consideration in Boris, and all computational routines can be executed on graphical processing units (GPUs), in addition to central processing units. In particular, a modified 3D convolution algorithm is used to compute the demagnetizing field on the GPU, termed pipelined convolution, and benchmark comparisons with existing GPU-accelerated software Mumax3 have shown performance improvements up to twice faster.

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Section: Two-sublattice Modelmentioning

confidence: 79%

Section: Journal Of Applied Physicsmentioning

confidence: 99%

Boris computational spintronics—High performance multi-mesh magnetic and spin transport modeling software

Lepadatu

2020

Journal of Applied Physics

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Manipulation of magnetic anisotropy by voltage induced strain in Co2MnAl/PMN-PT heterostructure

Özdemir

Altındal

Arslan

2022

Journal of Applied Physics

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We have investigated the effect of an external electric field on the magnetic properties of Co2MnAl thin films deposited on a lead magnesium niobate-lead titanate (PMN-PT) (011) substrate. Stain-induced magnetoelectric coupling affects the magnetic properties of the Co2MnAl/PMN-PT system. The piezo-strain induced by applying an external field normal to the surface induces only in-plane strain, which leads to the rotation of easy-axis orientation of Co2MnAl from [100] to [Formula: see text] direction. The remanent magnetization states and coercivity of the Co2MnAl film vary significantly and asymmetrically with the applied voltage due to anisotropic strain originating from PMN-PT. Electrical control of magnetic anisotropy in a Co2MnAl Heusler compound at room temperature will be of interest for realizing next-generation magnetoelectric random access memory devices.

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Diamagnetic coupling for magnetic tuning in nano-thin films

Abstract: Thermally induced generation and annihilation of magnetic chiral skyrmion bubbles and achiral bubbles in Mn-Ni-Ga magnets

Cited by 2 publications

References 23 publications

Boris computational spintronics—High performance multi-mesh magnetic and spin transport modeling software

Boris computational spintronics—High performance multi-mesh magnetic and spin transport modeling software

Manipulation of magnetic anisotropy by voltage induced strain in Co2MnAl/PMN-PT heterostructure

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