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A study of dynamic and reversible voltage controlled magnetization switching in ferromagnetic Co/Pt thin film with perpendicular magnetic anisotropy at room temperature is presented. The change in the magnetic properties of the system is…

The effect of anisotropy in the nearest-neighbor spin interactions that couple $N\geq 2$ consecutive spin-1/2 antiferromagnetic chains is studied theoretically by considering the limit where the coupling is purely of the Ising type. An…

Condensed Matter · Physics 2009-10-30 J. P. Rodriguez , P. D. Sacramento , V. R. Vieira

We have performed a layer-resolved, microscopic study of interactions between domain walls in two magnetic layers separated by a non-magnetic one, using high-resolution x-ray photoemission electron microscopy. Domain walls in the hard…

We theoretically demonstrate that the ultrafast magnetic order dynamics in antiferromagnets is exchange-enhanced in comparison to their ferromagnetic counterparts. We provide an equation of motion for the magnetic order dynamics validated…

Materials Science · Physics 2022-06-14 Florian Jakobs , Unai Atxitia

Implementation of antiferromagnetic compounds as active elements in spintronics has been hindered by their insensitive nature against external perturbations which causes difficulties in switching among different antiferromagnetic spin…

Long-range interactions can qualitatively reorganize correlated-electron ground states. In the square-lattice Hubbard model, on-site repulsion produces antiferromagnetic spin and charge stripes upon doping. We show that including a…

Strongly Correlated Electrons · Physics 2026-03-16 Chunhan Feng , Miguel A. Morales , Shiwei Zhang

This paper investigates the relationship among interlayer exchange coupling (IEC), Dzyaloshinskii-Moriya interaction (DMI), and multilevel magnetization switching within a Co/Pt/Co heterostructure, where varying Pt thicknesses enable…

Mesoscale and Nanoscale Physics · Physics 2023-12-21 Krzysztof Grochot , Piotr Ogrodnik , Jakub Mojsiejuk , Piotr Mazalski , Urszula Guzowska , Witold Skowroński , Tomasz Stobiecki

We consider analytically and numerically an anisotropic spin-$\frac{1}{2}$ delta-chain (sawtooth chain) in which exchange interactions between apical and basal spins are ferromagnetic and those between basal spins are antiferromagnetic. In…

Strongly Correlated Electrons · Physics 2016-11-23 D. V. Dmitriev , V. Ya. Krivnov

Exchange-coupled structures consisting of ferromagnetic and ferrimagnetic layers become technologically more and more important. We show experimentally the occurrence of completely reversible, hysteresis-free minor loops of [Co(0.2…

We calculate the energy of the magnetostatic interaction between two ferromagnetic films with uniform magnetization and correlated interfaces (the "orange-peel" effect). The "orange-peel" coupling is anisotropic: the interaction is…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 M. A. Kuznetsov , O. G. Udalov , A. A. Fraerman

Anisotropic antiferromagnets in an external magnetic field show a rich variety of different ground states meeting in transition lines and multicritical points. We study the dependence of the ground states of these systems in the three…

Statistical Mechanics · Physics 2009-07-10 T. -C. Dinh , R. Folk

The superexchange theory predicts dominant antiferromagnetic kinetic interaction when the orbitals accommodating magnetic electrons are covalently bonded through diamagnetic bridging atoms/groups. Here we show that explicit consideration of…

Strongly Correlated Electrons · Physics 2020-09-23 Zhishuo Huang , Dan Liu , Akseli Mansikkamäki , Veacheslav Vieru , Naoya Iwahara , Liviu F. Chibotaru

The properties and mechanism of the magnetic phase transition of the perovskite-type Ti oxides, which is driven by the Ti-O-Ti bond angle distortion, are studied theoretically by using the effective spin and pseudospin Hamiltonian with…

Strongly Correlated Electrons · Physics 2007-05-23 Masahito Mochizuki , Masatoshi Imada

We present a detailed first principles study on the magnetic structure of an Fe monolayer on different surfaces of 5d transition metals. We use the spin-cluster expansion technique to obtain parameters of a spin model, and predict the…

Materials Science · Physics 2014-05-06 E. Simon , K. Palotás , B. Ujfalussy , A. Deák , G. M. Stocks , L. Szunyogh

The interlayer coupling between (Ga,Mn)As ferromagnetic layers in all-semiconductor superlattices is studied theoretically within a tight-binding model, which takes into account the crystal, band and magnetic structure of the constituent…

Materials Science · Physics 2009-11-11 P. Sankowski , P. Kacman

We report on the exchange bias between antiferromagnetic and ferroelectric hexagonal YMnO3 epitaxial thin films sandwiched between a metallic electrode (Pt) and a soft ferromagnetic layer (Py). Anisotropic magnetoresistance measurements are…

Strongly Correlated Electrons · Physics 2009-11-13 V. Laukhin , X. Marti , V. Skumryev , D. Hrabovsky , F. Sanchez , M. V. Garcia-Cuenca , C. Ferrater , M. Varela , U. Luders , J. F. Bobo , J. Fontcuberta

Recently, it was predicted that nonreciprocal magneto-electric effect in antiferromagnetic multilayered metamaterials occurs in two distinct versions. One is the conventional axion response, while another one is dual axion response captured…

Ground-state fluctuations reduce the zero-temperature magnetic moments of the spins in a quantum antiferromagnet. In the neighborhood of surfaces, interfaces, and other defects which break translational symmetry, these fluctuations are not…

Other Condensed Matter · Physics 2007-05-23 G. J. Mata , E. Pestana , M. Kiwi , H. Dreysse

We study the competition of magneto-dipole, anisotropy and exchange interactions in composite three dimensional multiferroics. Using Monte Carlo simulations we show that magneto-dipole interaction does not suppress the ferromagnetic state…

Mesoscale and Nanoscale Physics · Physics 2015-05-22 A. M. Belemuk , O. G. Udalov , N. M. Chtchelkatchev , I. S. Beloborodov

It is shown that magnetic states and field-driven reorientation transitions in synthetic antiferromagnets crucially depend on contributions of higher-order anisotropies. A phenomenological macrospin model is derived to describe the magnetic…

Materials Science · Physics 2009-11-11 A. N. Bogdanov , U. K. Roessler
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