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Nonlinear current-voltage characteristics and magnetoresistance of point contacts between a normal metal (N) and films of amorphous ferromagnet (F) Co40Fe40B20 of different thickness, exchange-biased by antiferromagnetic Mn80Ir20 are…

介观与纳米尺度物理 · 物理学 2015-06-22 O. P. Balkashin , V. V. Fisun , L. Yu. Triputen , S. Andersson , V. Korenivski , Yu. G. Naidyuk

The ground states of square lattice two-dimensional antiferromagnets with anisotropy in an external magnetic field are determined using Monte Carlo simulations and compared to theoretical analysis. We find a new phase in between the…

介观与纳米尺度物理 · 物理学 2016-08-10 Rick Keesman , Mark Raaijmakers , A. E. Baerends , G. T. Barkema , R. A. Duine

We have demonstrated the existence of the Morin transition in epitaxially grown hematite thin films exceeding a critical thickness. The Morin transition temperature can be suppressed by magnetic fields applied both parallel and…

材料科学 · 物理学 2025-04-08 Haoyu Liu , Hantao Zhang , Josiah Keagy , Qinwu Gao , Letian Li , Junxue Li , Ran Cheng , Jing Shi

We have studied surface morphology and magnetic properties of Fe/MgO(001) films deposited at an angle varying between 0o and 60o with respect to the surface normal and with azimuth along the Fe[010] or the Fe[110] direction. Due to…

材料科学 · 物理学 2009-11-13 Qing-feng Zhan , Chris Van Haesendonck , Stijn Vandezande , Kristiaan Temst

We have investigated temperature and magnetic-field dependence of dielectric properties in the orthorhombic GdMnO$_3$ single crystal which is located near the phase boundary between the ferroelectric/spiral-antiferromagnetic phase and the…

强关联电子 · 物理学 2009-11-13 H. Kuwahara , M. Akaki , J. Tozawa , M. Hitomi , K. Noda , D. Akahoshi

Single domain magnetic nanoparticles (MNP) interacting through dipolar interactions (DDI) in addition to the magnetocrystalline energy may present a low temperature ferromagnetic (SFM) or spin glass (SSG) phase according to the underlying…

介观与纳米尺度物理 · 物理学 2018-10-11 V. Russier , E. Ngo

The spin-wave dynamics in the thin CoFeB film in Damon-Eshbach geometry are studied in three cases of boundary conditions -- free boundary conditions, symmetrical surface anisotropy, and one-sided surface anisotropy. The analytical model…

介观与纳米尺度物理 · 物理学 2024-04-17 Krzysztof Szulc , Julia Kharlan , Pavlo Bondarenko , Elena V. Tartakovskaya , Maciej Krawczyk

In previous experiments, thin films of L1$\mathrm{_0}$ FeNi with different surfaces, including (001), (110) and (111), were produced and studied. Each surface defines a different alignment of the crystallographic tetragonal axis with…

材料科学 · 物理学 2025-02-17 Joanna Marciniak , Mirosław Werwiński

The morphological evolution of voids at the unpassivated surfaces and the sidewalls of the single crystal metallic films are investigated via computer simulations by using the novel mathematical model developed by Ogurtani relying on the…

材料科学 · 物理学 2009-10-27 Tarik Omer Ogurtani , Aytac Celik

The interface between organic semiconductor [OSC]/ferromagnetic [FM] material can exhibit ferromagnetism due to their orbital hybridization. Charge/spin transfer may occur from FM to OSC layer leading to the formation of `spinterface' i.e.…

Very thick films of BiCrO$_3$ have been grown on a SrTiO$_3$ substrate, maintaining a tetragonal lattice up to thicknesses of 14,000\AA. Assuming we can treat films of this thickness as bulk crystals, we first calculated the experimentally…

材料科学 · 物理学 2012-02-08 Jun Ding , Yugui Yao , Leonard Kleinman

The local magnetic anisotropy of a typical crystalline compound is usually attributed to the combined effect of crystal electric fields and spin-orbit coupling. We show that this simple local picture is transformed in heavy-fermion…

强关联电子 · 物理学 2025-08-05 Ewan Scott , Michal Kwasigroch

A comprehensive theoretical investigation on the field-driven reorientation transitions in uniaxial multilayers with antiferromagnetic coupling is presented. It is based on a complete survey of the one-dimensional solutions for the basic…

材料科学 · 物理学 2007-05-23 U. K. Roessler , A. N. Bogdanov

The spin dynamics of the semiclassical Heisenberg model with uniaxial anisotropy, on the layered triangular lattice with antiferromagnetic coupling for both intralayer nearest neighbor interaction and interlayer interaction is studied both…

强关联电子 · 物理学 2007-05-23 Ranjan Chaudhury

A theoretical study is made of the magnetization versus applied field curves of ferromagnetic/nonmagnetic multilayers constructed according to a Fibonacci quasiperiodic sequence. The ferromagnetic films are assumed to have uniaxial…

材料科学 · 物理学 2009-11-07 C. G. Bezerra , M. G. Cottam

We investigate the formation of stable one-dimensional N\'eel walls in a ferromagnetic slab with finite thickness and finite width. Taking into account the dipolar, the exchange and the uniaxial anisotropic crystalline field interactions,…

介观与纳米尺度物理 · 物理学 2009-11-11 Rafael M. Fernandes , Harry Westfahl , Rogério Magalhães-Paniago , Leticia N. Coelho

We have investigated the ferrimagnetic domain structure in a Gd$_{0.67}$Ca$_{0.33}$MnO$_{3}$ thin film using magnetic force microscopy. We observe clear signs of phase separation, with magnetic islands embedded in a non-magnetic matrix. We…

A brief review is provided of earlier work on the low temperature phases of $S=1$ kagome and triangular lattice antiferromagnets in which there is sufficiently strongly single-ion anisotropy $D$ that dominates over the antiferromagnetic…

强关联电子 · 物理学 2015-06-18 K. Damle

The dynamical responses of a ferromagnetic film to a propagating spherical electromagnetic wave passing through it are studied by Monte Carlo simulation of two dimensional Ising ferromagnet. For a fixed set of values of the frequency and…

统计力学 · 物理学 2015-06-16 Muktish Acharyya

Pinning magnetization in a ferromagnetic thin film is commonly realized through exchange biasing with an adjacent antiferromagnet. Field-cooling from above the N\'{e}el temperature is a reliable yet slow re-pinning method in exchange-biased…

介观与纳米尺度物理 · 物理学 2026-05-25 Floris J. F. van Riel , Andries B. M. Droste , Bert Koopmans , Diana C. Leitao