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The magnetic properties of anisotropic films have been studied using 3D-neutron polarization analysis. The experimental facts refer to essential distinction of the sample states, magnetized in opposite directions. For an explanation of…

Condensed Matter · Physics 2007-05-23 A. V. Kovalev , L. A. Akselrod

We demonstrate control of magnetic domain structures in continuous FePd thin films by patterning their surfaces with plasma treatment. The Fe-oxide layer formed on the surface upon ambient exposure of the FePd alloy thin film grown on an…

Mesoscale and Nanoscale Physics · Physics 2020-06-15 Wei-Hsiang Wang , Po-Chun Chang , Pei-hsun Jiang , Wen-Chin Lin

We report on a strain-induced and temperature dependent uniaxial anisotropy in V$_{2}$O$_{3}$/Ni hybrid thin films, manifested through the interfacial strain and sample microstructure, and its consequences on the angular dependent…

Mesoscale and Nanoscale Physics · Physics 2017-10-19 Dustin A. Gilbert , Juan Gabriel Ramírez , Thomas Saerbeck , Juan Trastoy , Ivan K. Schuller , Kai Liu , Jose de la Venta

Magnetic anisotropy (MA) is one of the most important material properties for modern spintronic devices. Conventional manipulation of the intrinsic MA, i.e. magnetocrystalline anisotropy (MCA), typically depends upon crystal symmetry.…

Magnetization reversal in exchange-spring magnet films has been investigated by a First Order Reversal Curve (FORC) technique and vector magnetometry. In Fe/epitaxial-SmCo films, the reversal proceeds by a reversible rotation of the Fe soft…

Materials Science · Physics 2007-05-23 Joseph E. Davies , Olav Hellwig , Eric E. Fullerton , J. S. Jiang , S. D. Bader , G. T. Zimanyi , Kai Liu

Combining pairs of ferromagnetic metals with different signs of scattering anisotropies, let us independently invert the magnetoresistance and the direction of current-driven switching in ferromagnetic/non-magnetic/ferromagnetic metal…

Materials Science · Physics 2013-05-29 M. AlHajDarwish , H. Kurt , S. Urazhdin , A. Fert , R. Loloee , W. P. Pratt , J. Bass

The large arrays of magnetic dots are the building blocks of magnonic crystals and the emerging bit patterned media for future recording technology. In order to fully utilize the functionalities of high density magnetic nanodots, a method…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Mehrdad Elyasi , Charanjit S. Bhatia , Hyunsoo Yang

A model is studied for the theoretical description of nanoscale magnetic films with high perpendicular anisotropy. In the model the magnetic film is described in terms of single domain magnetic grains with Ising-like behavior, interacting…

Statistical Mechanics · Physics 2016-08-31 U. Nowak

We study the reversal of magnetization in an isotropic ferromagnetic film free from charges by exposing it to a circularly polarized electromagnetic (EM) field. The magnetization excitations obtained in the form of line and lump solitons of…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 V. Veerakumar , M. Daniel

Pt(x{\AA})/Co(5{\AA})/Pt(10{\AA}) trilayer films were deposited on naturally oxidized Si(111) substrate to investigate Ti underlayer effect on PMA. A small amount of Ti underlayer promoted the magnetic anisotropy to a perpendicular…

Mesoscale and Nanoscale Physics · Physics 2021-10-27 Melek Türksoy Öcal , Baha Sakar , İlker Öztoprak , Zoltan Balogh-Michels , Antonia Neels , Osman Öztürk

We demonstrate spin-orbit torque (SOT) switching of amorphous CoTb single layer films with perpendicular magnetic anisotropy (PMA). The switching sustains even the film thickness is above 10 nm, where the critical switching current density…

Perpendicular magnetic anisotropy (PMA) plays a critical role in the development of spintronics, thereby demanding new strategies to control PMA. Here we demonstrate a conceptually new type of interface induced PMA that is controlled by…

The nature of low-impurity ferromagnetism remains a challenging problem in the solid-state community due to the strong dependence of magnetic properties on composition, concentration, and structural geometry of diluted alloys. To address…

We have observed that CoO films grown on different substrates show dramatic differences in their magnetic properties. Using polarization dependent x-ray absorption spectroscopy at the Co L$_{2,3}$ edges, we revealed that the magnitude and…

Strongly Correlated Electrons · Physics 2007-05-23 S. I. Csiszar , M. W. Haverkort , Z. Hu , A. Tanaka , H. H. Hsieh , H. -J. Lin , C. T. Chen , T. Hibma , L. H. Tjeng

CuMnAs with perpendicular magnetic anisotropy is proposed as an active material for antiferromagnetic memory. Information can be stored in the antiferromagnetic domain state, while writing and readout can rely on the existence of the…

Materials Science · Physics 2018-10-26 I. A. Zhuravlev , A. Adhikari , K. D. Belashchenko

We examined the photo-induced dynamics of ferromagnetic Co/Pt thin films demonstrating perpendicular magnetic anisotropy with element specificity using resonant polar magneto-optical Kerr effect measurements at Pt~N${}_{6,7}$ and…

The magnetism of single atoms and molecules is governed by the atomic scale environment. In general, the reduced symmetry of the surrounding splits the $d$ states and aligns the magnetic moment along certain favorable directions. Here, we…

Mesoscale and Nanoscale Physics · Physics 2015-11-30 Benjamin W. Heinrich , Lukas Braun , Jose I. Pascual , Katharina J. Franke

Nanodots with magnetic vortices have many potential applications, such as magnetic memories (VRAMs) and spin transfer nano-oscillators (STNOs). Adding a perpendicular anisotropy term to the magnetic energy of the nanodot it becomes possible…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 E. R. P. Novais , P. Landeros , A. G. S. Barbosa , M. D. Martins , F. Garcia , A. P. Guimarães

The dependence of the magnetic anisotropy of As-capped (Ga,Mn)As epilayers on the annealing parameters - temperature and time - has been investigated. A uniaxial magnetic anisotropy is evidenced, whose orientation with respect to the…

Materials Science · Physics 2007-05-23 V. Stanciu , P. Svedlindh

A magneto-optically active thin film of Rb$_{j}$Co$_{k}$[Fe(CN)$_{6}$]$_{l}$ $\cdot$$n$H$_{2}$O has been prepared using a sequential assembly method. Upon irradiation with light and at 5 K, the net magnetization of the film increased when…

Other Condensed Matter · Physics 2016-08-16 J. -H. Park , E. Čižmár , M. W. Meisel , Y. D. Huh , F. Frye , S. Lane , D. R. Talham
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