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Related papers: Vertically Graded Anisotropy in Co/Pd Multilayers

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The influence of the in-plane anisotropy on the magnetization of a nanogranular film with perpendicular anisotropy has been studied. It is shown that if a magnetic field is tilted with respect to the film normal, a critical transition from…

Mesoscale and Nanoscale Physics · Physics 2015-01-29 M. M. Kulyk , V. M. Kalita , A. F. Lozenko , S. M. Ryabchenko , O. V. Stognei , A. V. Sitnikov

For isotropic media, the magnetic field applied across the light propagation direction affects their optical properties only in the second order, and its effect proves to be much weaker than in the longitudinal field. In this work, we show…

Element-specific orbital magnetic moments and their anisotropies in perpendicularly magnetised Co/Pd multilayers are investigated using Co L-edge and Pd M-edge angle-dependent x-ray magnetic circular dichroism. We show that the orbital…

Materials Science · Physics 2019-04-23 Jun Okabayashi , Yoshio Miura , Hiro Munekata

We investigate the vertical gradient of the magnetic field of sunspots in the photospheric layer. Independent observations were obtained with the SOT/SP onboard the Hinode spacecraft and with the TIP-2 mounted at the VTT. We apply…

Solar and Stellar Astrophysics · Physics 2017-03-01 Jayant Joshi , Andreas Lagg , Johann Hirzberger , Sami K. Solanki , Sanjiv K. Tiwari

We investigate magnetic anisotropy and magnetization reversal mechanism in chromium telluride thin films grown by molecular beam epitaxy. We report existence of strong perpendicular anisotropy in these thin films, along with a relatively…

Mesoscale and Nanoscale Physics · Physics 2017-05-10 Tanmoy Pramanik , Anupam Roy , Rik Dey , Amritesh Rai , Samaresh Guchhait , Hema CP Movva , Cheng-Chih Hsieh , Sanjay K Banerjee

We reveal the assembly of monodisperse magnetite nanoparticles of sizes 5 nm, 15 nm and 25 nm from dilute water-based ferrofluids onto an amorphous magnetic template with out-of-plane anisotropy. From neutron reflectometry experiments we…

We present a comprehensive study of the reversal process of perpendicular magnetization in thin layers of the ferromagnetic semiconductor Ga1-xMnxAs. For this investigation we have purposely chosen Ga1-xMnxAs with a low Mn concentration (x…

Materials Science · Physics 2009-11-11 X. Liu , W. L. Lim , L. V. Titova , M. Dobrowolska , J. K. Furdyna , M. Kutrowski , T. Wojtowicz

The orientation of the tilted magnetic anisotropy has crucial importance in many spintronic devices. However, it is very challenging to determine it especially in very small structures produced by lithography. Here, we propose a new…

Mesoscale and Nanoscale Physics · Physics 2021-03-22 Hasan Piskin , Erdem Demirci , Mustafa Ozturk , Numan Akdogan

The interplay between intrinsic and surface/interface-induced magnetic anisotropies strongly in- fluences magnetization processes in nanomagnetic systems. We develop a micromagnetic theory to describe the field-driven reorientation in…

Mesoscale and Nanoscale Physics · Physics 2016-07-12 A. A. Leonov , U. K. Roessler , A. N. Bogdanov

We demonstrate the presence of an important anisotropic magnetoresistance contribution to the domain wall resistance recently measured in thin-film (Ga,Mn)As with in-plane magnetic anisotropy. Analytic results for simple domain wall…

Materials Science · Physics 2009-11-11 H. G. Roberts , S. Crampin , S. J. Bending

We propose a short overview of a few selected issues of magnetism in reduced dimensions, which are the most relevant to set the background for more specialized contributions to the present Special Issue. Magnetic anisotropy in reduced…

Other Condensed Matter · Physics 2016-08-16 Olivier Fruchart , André Thiaville

It is found in the Pt/Co/Pt(111) sandwiches that perpendicular magnetic anisotropy weakens associated with the dramatic magnetization enhancement as the temperature decreases below a critical temperature, T_cri, which increases with the Pt…

Materials Science · Physics 2019-09-25 Weiwei Lin , Hai Sang

The electric control of magnetic anisotropy has important applications for nonvolatile memory and information processing. By first-principles calculations, we show a large nonvolatile control of magnetic anisotropy in…

We report an experimental assessment of surface kinetic roughening properties that are anisotropic in space. Working for two specific instances of silicon surfaces irradiated by ion-beam sputtering under diverse conditions (with and without…

Materials Science · Physics 2015-06-11 Edoardo Vivo , Matteo Nicoli , Martin Engler , Thomas Michely , Luis Vázquez , Rodolfo Cuerno

We demonstrate a simple method to tailor the magnetization reversal mechanisms of Co/Pt multilayers by depositing them onto large area nanoporous anodized alumina (AAO) with various aspect ratios, A = pore depth/diameter. Magnetization…

Materials Science · Physics 2009-01-30 M. Tofizur Rahman , Randy K. Dumas , Nasim Eibagi , Nazmun N Shams , Yun-Chung Wu , Kai Liu , Chih-Huang Lai

We report on magnetic domain wall velocity measurements in ultrathin Pt/Co(0.5-0.8 nm)/Pt films with perpendicular anisotropy over a large range of applied magnetic fields. The complete velocity-field characteristics are obtained, enabling…

Materials Science · Physics 2007-12-13 P. J. Metaxas , J. P. Jamet , A. Mougin , M. Cormier , J. Ferre , V. Baltz , B. Rodmacq , B. Dieny , R. L. Stamps

Perpendicular magnetic anisotropy (PMA) in ultrathin magnetic structures is a key ingredient for the development of electrically controlled spintronic devices. Due to their relatively large spin-polarization, high Curie temperature and low…

Materials Science · Physics 2019-10-30 M. S. Gabor , M. Nasui , A. Timar-Gabor

The effects of hydrogen (H2) and deuterium (D2) absorption were studied in two Co/Pd multilayers with perpendicular magnetic anisotropy (PMA) using polarized neutron reflectivity (PNR). PNR was measured in an external magnetic field H…

Materials Science · Physics 2015-05-27 K. Munbodh , F. A. Perez , C. Keenan , M. Zhernenkov , M. R. Fitzsimmon , D. Lederman

A model is introduced 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, interacting via exchange as well as…

Condensed Matter · Physics 2009-10-28 U. Nowak

Laser-induced magnetization precession of an in-plane magnetized Pt/Co/Pt film with perpendicular interface anisotropy was studied using time resolved magneto-optical Kerr effect. An additional $\pi$ shift in the phase of precession is…

Mesoscale and Nanoscale Physics · Physics 2024-07-16 D. Wang
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