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The magnetic anisotropy and magnetic interactions at the interface between Fe and NiO(001) were investigated. Depending on the growth conditions of the NiO(001) layers and the post-annealing temperature, the preferential magnetization…

Multifunctional materials composed of ultrathin magnetic films with perpendicular magnetic anisotropy combined with ferroelectric substrates represent a new approach toward low power, fast, high density spintronics. Here we demonstrate…

介观与纳米尺度物理 · 物理学 2016-01-08 Daniel B. Gopman , Cindi L. Dennis , Andrew P. Chen , Yury L. Iunin , Peter Finkel , Margo Staruch , Robert D. Shull

We present optimization of [(15 $\unicode{x212B}$) Ni$_{80}$Fe$_{20}$/(5 $\unicode{xC5}$) M]$_{20}$ single crystal multilayers on (001) MgO, with M being Cu, Cu$_{50}$Pt$_{50}$ and Pt. These superlattices were characterized by…

材料科学 · 物理学 2023-03-01 Movaffaq Kateb , Jon Tomas Gudmundsson , Snorri Ingvarsson

Single-crystal Heusler atomic-scale superlattices that have been predicted to exhibit perpendicular magnetic anisotropy and half-metallicity have been successfully grown by molecular beam epitaxy. Superlattices consisting of full-Heusler…

Ferromagnetic films with perpendicular magnetic anisotropy are of interest in spintronics and superconducting spintronics. Perpendicular magnetic anisotropy can be achieved in thin ferromagnetic multilayer structures, when the anisotropy is…

介观与纳米尺度物理 · 物理学 2023-06-01 N. Satchell , S. Gupta , M. Maheshwari , P. M. Shepley , M. Rogers , O. Cespedes , G. Burnell

We report the development of the [Pt0.75Ti0.25/Co-Ni multilayer/Ta]n superlattice with strong spin-orbit torque, large perpendicular magnetic anisotropy, and low switching current density. We demonstrate that the efficiency of the…

材料科学 · 物理学 2025-08-26 Xiaomiao Yin , Zhengxiao Li , Jun Kang , Changmin Xiong , Lijun Zhu

We exploit the magnetic interlayer coupling in La0.7Sr0.3MnO3/SrRuO3 superlattices to realize a crossover between inverse and conventional magnetic entropy changes. Our data reveal a strong anisotropic nature of the magnetocaloric effect…

材料科学 · 物理学 2010-09-16 S. Thota , Q. Zhang , F. Guillou , U. Luders , N. Barrier , W. Prellier , A. Wahl , P. Padhan

In order to analyse the effect of strain on the magnetic properties of narrow-band manganites, the temperature and field dependent susceptibilities of about 8.5 nm thick epitaxial Pr0.7Ca0.3MnO3 films, respectively grown on (001) and (110)…

MnxGa films with high perpendicular anisotropy, coercivity and energy product have great application potential in ultrahigh-density perpendicular recording, permanent magnets, spin-transfer-torque memory and oscillators, magneto-resistance…

材料科学 · 物理学 2016-05-12 Lijun Zhu , Dong Pan , Shuaihua Nie , Jianhua Zhao

We present a detailed study on the magnetic properties, including anisotropy, reversal fields, and magnetization reversal processes, of well characterized half-metallic epitaxial La0.7Sr0.3MnO3 (LSMO) thin films grown onto SrTiO3 (STO)…

介观与纳米尺度物理 · 物理学 2011-07-21 P. Perna , C. Rodrigo , E. Jiménez , F. J. Teran , L. Méchin , N. Mikuszeit , J. Camarero , R. Miranda

Magnetic tunnel junctions with a magnetic layer with perpendicular anisotropy are currently used in computer memories that do not require voltage sustaining. An example of layers with perpendicular magnetic anisotropy are ultrathin FeCo…

High perpendicular magnetic anisotropy (PMA), a property needed for nanoscale spintronic applications, is rare in oxide conductors. We report the observation of a PMA up to 0.23 MJ/m3 in modestly strained epitaxial NiCo2O4 (NCO) films which…

材料科学 · 物理学 2020-01-15 Corbyn Mellinger , Jace Waybright , Xiaozhe Zhang , Caleb Schmidt , Xiaoshan Xu

We report the magnetic properties of yttrium iron garnet (YIG) thin films grown by pulsed laser deposition technique. The films were deposited on Si (100) substrates in the range of 15-50 nm thickness. Magnetic characterizations were…

材料科学 · 物理学 2021-07-13 Zurbiye Capku , Caner Deger , Perihan Aksu , Fikret Yildiz

We investigate submicron ferromagnetic PdNi thin-film strips intended as contact electrodes for carbon nanotube-based spintronic devices. The magnetic anisotropy and micromagnetic structure are measured as function of temperature and aspect…

介观与纳米尺度物理 · 物理学 2015-06-11 D. Steininger , A. K. Huettel , M. Ziola , M. Kiessling , M. Sperl , G. Bayreuther , Ch. Strunk

The study investigates the manipulation of the magnetic anisotropy in a thick (1 $\mu$m) Ni$_{90}$Fe$_{10}$ layer electrodeposited on a ferroelectric BaTiO$_3$(001) substrate, using a combination of Magneto-optical Kerr Effect,…

Rare earth/transition metal (RE/TM) multilayers with perpendicular magnetic anisotropy are key ingredients for the development of spintronic applications. Their compensation temperature depends on the ratio of the thicknesses of rare earth…

The symmetry-induced magnetic anisotropy due to monoatomic steps at strained Ni films is determined using results of first - principles relativistic full-potential linearized augmented plane wave (FLAPW) calculations and an analogy with the…

材料科学 · 物理学 2009-10-31 A. B. Shick , Yu. N. Gornostyrev , A. J. Freeman

Stripe domains are studied in perpendicular magnetic anisotropy films nanostructured with a periodic thickness modulation that induces the lateral modulation of both stripe periods and inplane magnetization. The resulting system is the 2D…

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…

介观与纳米尺度物理 · 物理学 2015-05-28 E. R. P. Novais , P. Landeros , A. G. S. Barbosa , M. D. Martins , F. Garcia , A. P. Guimarães

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
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