中文
相关论文

相关论文: Domain structure in CoFeB thin films with perpendi…

200 篇论文

The incorporation of Phosphorus into (Ga,Mn)As epilayers allows for the tuning of the magnetic easy axis from in-plane to perpendicular-to-plane without the need for a (Ga,In)As template. For perpendicular easy axis, using magneto-optical…

The control of domain walls or spin textures is crucial for spintronic applications of antiferromagnets. Despite many efforts, it has been challenging to directly visualize antiferromagnetic domains or domain walls with nanoscale…

材料科学 · 物理学 2020-03-06 Paul M. Sass , Wenbo Ge , Jiaqiang Yan , D. Obeysekera , J. J Yang , Weida Wu

We examine the substructures of magnetic domain walls (DWs) in [Pt/(Co/Ni)$_M$/Ir]$_N$ multi-layers using a combination of micromagnetic theory and Lorentz transmission electron microscopy (LTEM). Thermal stability calculations of Q=$\pm$1…

Magnetism of oxide antiferromagnets (AFMs) has been studied in single crystals and extended thin films. The properties of AFM nanostructures still remain underexplored. Here, we report on the fabrication and magnetic imaging of granular…

We report the observation of the antisymmetric magnetoresistance (MR) in perpendicular magnetized CoTb films with inhomogeneous magnetization distribution driven by gradient magnetic field. By synchronously charactering the domain pattern…

材料科学 · 物理学 2021-08-23 Yangtao Su , Yang Meng , Haibin Shi , Li Wang , Xinyu Cao , Ying Zhang , Runwei Li , Hongwu Zhao

We use time-resolved x-ray resonant magnetic scattering (tr-XRMS) at the Co M$_{2,3}$- and Tb O$_1$-edges to study ultrafast demagnetization in an amorphous Co$_{88}$Tb$_{12}$ alloy with stripe domains. Combining the femtosecond temporal…

Heterostructures comprising ferromagnet (FM) and heavy metals (HM) with perpendicular magnetic anisotropy (PMA) and interfacial Dzyaloshinskii-Moriya interaction (iDMI) can host chiral domain walls and topological spin textures, making them…

We study the magnetic properties of perpendicularly magnetised Pt/Co/Ir thin films and investigate the domain wall creep method of determining the interfacial Dzyaloshinskii-Moriya (DM) interaction in ultra-thin films. Measurements of the…

介观与纳米尺度物理 · 物理学 2018-04-20 Philippa M. Shepley , Harry Tunnicliffe , Kowsar Shahbazi , Gavin Burnell , Thomas A. Moore

Magnetic field driven domain wall dynamics in a ferrimagnetic GdFeCo thin film with perpendicular magnetic anisotropy is studied using low temperature magneto-optical Kerr microscopy. Measurements performed in a practically athermal…

Co /CoO/Co polycrystalline film was grown on Si (001) substrate and magnetic properties have been investigated using in-situ magneto-optic Kerr effect during growth of the sample. Magnetic anisotropy with easy axis perpendicular to the film…

材料科学 · 物理学 2023-01-31 Dileep Kumar , Ajay Gupta , P. Patidar , K. K. Pandey , T. Sant , S. M. Sharma

Antiferromagnetic materials hold potential for use in spintronic devices with fast operation frequencies and field robustness. Despite the rapid progress in proof-of-principle functionality in recent years, there has been a notable lack of…

Magnetic field-driven domain wall motion in an ultrathin Pt/Co(0.45nm)/Pt ferromagnetic film with perpendicular anisotropy is studied over a wide temperature range. Three different pinning dependent dynamical regimes are clearly identified:…

无序系统与神经网络 · 物理学 2014-07-30 J. Gorchon , S. Bustingorry , J. Ferré , V. Jeudy , A. B. Kolton , T. Giamarchi

We study magnetic domain walls in double exchange materials. The domain wall width is proportional to the square root of the stiffness. In the double exchange model the stiffness has two terms: the kinetic energy and the Hartree term. The…

材料科学 · 物理学 2007-05-23 Luis Brey

We perform a study of domain walls in Co/Ir$_n$/Pt(111) (n = 0,1,...,6) films by a combined approach of first-principles calculations and spin dynamics simulations. We determine the tensorial exchange interactions and the magnetic…

介观与纳米尺度物理 · 物理学 2017-01-04 Gy. J. Vida , E. Simon , L. Rózsa , K. Palotás , L. Szunyogh

Amorphous sputtered Co-based thin films are widely used as soft magnetic materials in applications such as sensors, inductors and magnetic flux concentrators. The magnetic properties of these films can be controlled by deposition parameters…

材料科学 · 物理学 2025-05-29 Indujan Sivanesarajaha , Leon Abelmann , Uwe Hartmann

We explore the magnetic-field-driven motion of domain walls with different chiralities in thin ferromagnetic films made of Pt/Co/Pt, Au/Co/Pt, and Pt/Co/Au. From the analysis of domain wall dynamics, we extract parameters characterizing the…

介观与纳米尺度物理 · 物理学 2020-11-04 P. Géhanne , S. Rohart , A. Thiaville , V. Jeudy

A 75 nm-thick Fe0.5Pt0.5 film is a ferromagnetic metal showing striped magnetic domains in remanence at room temperature. The magnetoresistance is characterized by varying the external temperature and the in-plane magnetic field intensity,…

介观与纳米尺度物理 · 物理学 2026-05-29 C. P. Quinteros , L. Avilés-Félix , D. Goijman , L. Saba , D. Pérez Morelo , L. Granja , M. Granada , J. Milano

Magnetotransport measurements on small single crystals of Cr, the elemental antiferromagnet, reveal the hysteretic thermodynamics of the domain structure. The temperature dependence of the transport coefficients is directly correlated with…

材料科学 · 物理学 2015-06-25 R. Jaramillo , T. F. Rosenbaum , E. D. Isaacs , O. G. Shpyrko , P. G. Evans , G. Aeppli , Z. Cai

The structural evolution of a polydomain ferroelectric Pb(Zr0.2Ti0.8)O3 film was studied by temperature dependent X-ray diffraction. Two critical temperatures were evidenced: T*=740K, corresponding to a change in the domain structure…

When electric and magnetic fields are applied together on a magnetoelectric antiferromagnet, the domain state is subject to reversal. Although the initial and final conditions are saturated single-domain states, the process of reversal may…

应用物理 · 物理学 2019-03-27 Arun Parthasarathy , Shaloo Rakheja