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The reflection coefficient of bulk spin waves from multilayer ferromagnetic structure with periodically modulated parameters of exchange interaction, uniaxial and rhombic magnetic anisotropy and saturation magnetization is calculated with a…

Materials Science · Physics 2009-01-15 Sergey A Reshetnyak , Tat'yana A Homenko

We report the observation of ferromagnetic resonance (FMR) and the determination of the magnetocrystalline anisotropy in (100)-oriented single-crystalline thin film samples of GaMnP with x=0.042. The contributions to the magnetic anisotropy…

The discovery of new mechanisms of controlling magnetic properties by electric fields or currents furthers the fundamental understanding of magnetism and has important implications for practical use. Here, we present a novel approach of…

Materials Science · Physics 2023-08-21 Pavel Salev , Iana Volvach , Dayne Sasaki , Pavel Lapa , Yayoi Takamura , Vitaliy Lomakin , Ivan K Schuller

Multiferroic devices hold profound promise for ultra-low energy computing in beyond Moore's law era. The magnetization of a magnetostrictive shape-anisotropic single-domain nanomagnet strain-coupled with a piezoelectric layer in a…

Mesoscale and Nanoscale Physics · Physics 2015-06-26 Kuntal Roy

The effect of the anisotropy in the exchange interaction on the phase diagrams and magnetization behavior of the Heisenberg thin film has been investigated with effective field formulation in a two spin cluster using the decoupling…

Statistical Mechanics · Physics 2015-06-17 Ümit Akıncı

Monte Carlo simulation has been employed to investigate the magnetic properties and phase diagrams of ferrimagnetic mixed-spin (1/2, 1) triangular Ising nanotube with core-shell structure. In particular, the effect of the exchange couplings…

Mesoscale and Nanoscale Physics · Physics 2021-10-04 Maen Gharaibeh , Samah Alqaiem , Abdalla Obeidat , Ahmad Al-Qawasmeh , Sufian Abedrabbo , Mohammad Badarneh

We investigate theoretically the magnetic dynamics in a ferroelectric/ferromagnetic heterostructure coupled via strain-mediated magnetoelectric interaction. We predict an electric field-induced magnetic switching in the plane perpendicular…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 Chenglong Jia , Alexander Sukhov , Paul P. Horley , Jamal Berakdar

We study magnetic multilayers, incorporating dilute ferromagnetic spacers between strongly-ferromagnetic layers exhibiting a proximity-enhanced magnetocaloric effect. Using magnetometry and direct measurements of the adiabatic temperature…

Mesoscale and Nanoscale Physics · Physics 2022-12-21 M. Kulyk , M. Persson , D. Polishchuk , V. Korenivski

The ferromagnetism of a thin GaMnAs layer with a perpendicular easy anisotropy axis is investigated by means of several techniques, that yield a consistent set of data on the magnetic properties and the domain structure of this diluted…

The trilayered Blume-Capel ($S=1$) magnet with nearest neighbour intralayer ferromagnetic and nearest neighbour interlayer antiferromagnetic interaction is studied by Monte Carlo simulation. Depending on the relative interaction strength…

Statistical Mechanics · Physics 2020-09-14 Muktish Acharyya

Light-matter interaction at the nanoscale in magnetic materials is a topic of intense research in view of potential applications in next-generation high-density magnetic recording. Laser-assisted switching provides a pathway for overcoming…

Developing permanent magnets with fewer critical elements requires understanding hysteresis effects and coercivity through visualizing magnetization reversal. Here, we numerically investigate the effect of the geometry of nanoscale…

Materials Science · Physics 2025-08-27 Shouvik Sarker , Md Mahadi Rajib , Radhika Barua , Jayasimha Atulasimha

Two-dimensional layered aperiodic Ising systems are studied in the extreme anisotropic limit where they correspond to quantum Ising chains in a transverse field. The modulation of the couplings follows an aperiodic sequence generated…

Statistical Mechanics · Physics 2008-02-03 P. E. Berche , B. Berche , L. Turban

In this study, the magnetic reversal process of exchange-coupled bilayer systems, consisting of a ferrimagnetic TbFeCo alloy layer and a ferromagnetic [Co/Ni/Pt]N multilayer, was investigated. In particular, minor loop studies, probing…

The electronic structure of anti-ferromagnetic $Cr_{2}As$ is investigated. Anisotropy of exchange interactions between chrome sub-lattices is determined ($J^{X}(Cr_{I}-Cr_{II}) =4.77 meV,J^{Y}(Cr_{I}-Cr_{II}) =-6.36 meV$). The behavior of…

Materials Science · Physics 2019-02-12 V. I. Valkov , A. V. Golovchan , U. Aparajita , O. Roslyak

The periodic deviations of ferromagnetic and antiferromagnetic spins from corresponding uniform configurations are shown to be energetically favorable close to a compensated interface of ferromagnetic antiferromagnetic bilayer. The…

Materials Science · Physics 2007-05-23 N. A. Usov , Ching-Ray Chang , Zung-Hang Wei

We have studied the magnetization reversal process in FM/AFM bilayer structures through of spin dynamics simulation. It has been observed that the magnetization behavior is different at each branch of the hysteresis loop as well as the…

Materials Science · Physics 2014-03-24 E. B. Santos , P. Z. Coura , R. A. Dias , S. A. Leonel , J. C. S. Rocha

We investigate theoretically the spin torque and magnetization dynamic in a thin ferromagnetic (FM) layer with spatially varying magnetization. The FM layer is deposited on the surface of a topological insulator (TI). In the limit of the…

Mesoscale and Nanoscale Physics · Physics 2013-03-29 Ji Chen , Mansoor Bin Abdul Jalil , Seng Ghee Tan

Magnetoelectric coupling in ferromagnet/multiferroic systems is often manifested in the exchange bias effect, which may have combined contributions from multiple sources, such as domain walls, chemical defects or strain. In this study we…

Materials Science · Physics 2016-08-29 Qintong Zhang , Peyton Murray , Lu You , Caihua Wan , Xuan Zhang , Wenjing Li , Usman Khan , Junling Wang , Kai Liu , Xiufeng Han

Single-crystal synchrotron x-ray diffraction studies of CeFeAsO reveal strong anisotropy in the charge correlation lengths along or perpendicular to the in-plane antiferromagnetic (AFM) wave-vector at low temperatures, indicating an…

Superconductivity · Physics 2014-07-08 H. -F. Li , J. -Q. Yan , J. W. Kim , R. W. McCallum , T. A. Lograsso , D. Vaknin