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Spin spirals form inside the magnetic layers of antiferromagnetic and noncollinearly-coupled magnetic multilayers in the presence of an external magnetic field. This spin structure can be modeled to extract the direct exchange stiffness of…

Mesoscale and Nanoscale Physics · Physics 2024-09-04 Elliot Wadge , Afan Terko , George Lertzman-Lepofsky , Paul Omelchenko , Bret Heinrich , Manuel Rojas , Erol Girt

The interlayer magnetoresistance of layered metals in a tilted magnetic field is calculated for two distinct models for the interlayer transport. The first model involves coherent interlayer transport and makes use of results of…

Strongly Correlated Electrons · Physics 2009-10-31 Perez Moses , Ross H. McKenzie

We report on systematic ab-initio investigations of Co and Cr interlayers embedded in Fe(001)/MgO/Fe(001) magnetic tunnel junctions, focusing on the changes of the electronic structure and the transport properties with interlayer thickness.…

Materials Science · Physics 2013-05-29 P. Bose , P. Zahn , J. Henk , I. Mertig

Co2MnSi (CMS) films of different thicknesses (20, 50 and 100 nm) were grown by radio frequency (RF) sputtering on a-plane sapphire substrates. Our X-rays diffraction study shows that, in all the samples, the cubic <110> CSM axis is normal…

Surface magnetic properties of the pseudomorphic Fe(110) monolayer on a W(110) substrate are investigated from first principles as a function of the substrate thickness (up to eight layers). Analyzing the magnetocrystalline anisotropy…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Torsten Andersen , Wolfgang Hübner

Fourth order perturbation was applied to study a small variation of the azimuthal angle of spin of fcc structured ferromagnetic thin films with two spin layers. The variation of magnetic energy and the orientation of magnetic easy axis with…

Computational Physics · Physics 2023-01-24 M. S. M. Farhan

We studied the dynamics of magnetization through an investigation of the magnetoimpedance effect in CoFeB/(Ta, Ag, Cu) multilayered thin films grown by magnetron sputtering. Impedance measurements were analyzed in terms of the mechanisms…

Materials Science · Physics 2015-05-28 M. S. Marques , T. Mori , L. F. Schelp , C. Chesman , F. Bohn , M. A. Correa

A positive, non-saturating and dominantly linear magnetoresistance is demonstrated to occur in the surface state of a topological insulator having a wavevector-linear energy dispersion together with a finite positive Zeeman energy…

Mesoscale and Nanoscale Physics · Physics 2012-08-28 C. M. Wang , X. L. Lei

Giant magnetoresistance (GMR) of sequentially evaporated Fe-Ag structures have been investigated. Direct experimental evidence is given that inserting ferromagnetic layers into a granular structure significantly enhances the…

Materials Science · Physics 2009-11-07 J. Balogh , M. Csontos , D. Kaptas , G. Mihaly

The resistance of layered conductors with a multisheet Fermi surface (FS), in a high magnetic field, in the immediate vicinity of Lifshic's topological transition when the separate FS sheets are drown together by an external action,…

Mesoscale and Nanoscale Physics · Physics 2014-10-31 O. Galbova , V. Peschansky

The giant magnetoresistance (GMR) effect has been widely investigated on electrodeposited ferromagnetic/non-magnetic (FM/NM) multilayers generally containing a large number of bilayers. In most applications of the GMR effect, layered…

Materials Science · Physics 2016-08-16 B. G. Tóth , L. Péter , I. Bakonyi

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…

. We focused on the interaction between two ferromagnetic cobalt layers through a non-magnetic titanium layer. The magnetic properties of the structure were characterized by ferromagnetic resonance technique (FMR). The data were collected…

Materials Science · Physics 2023-07-19 M. Erkovan , S. Tokdemir Ozturk , D. Taskin Gazioglu , R. Topkaya , O. Ozturk

Magnetic properties under the external field are investigated in low-carrier two-band systems, which may explain the nontrivial phase boundary found in temperature vs. magnetic field diagram discovered in some materials, such as…

Strongly Correlated Electrons · Physics 2007-05-23 Yoshiki Imai , Tetsuro Saso

The ferromagnetism of a thin GaMnAs layer with a perpendicular easy anisotropy axis is investigated by means of several techniques, that yield a consistent set of data on the magnetic properties and the domain structure of this diluted…

We study magnetic multilayers, incorporating dilute ferromagnetic spacers between strongly-ferromagnetic layers exhibiting a proximity-enhanced magnetocaloric effect. Using magnetometry and direct measurements of the adiabatic temperature…

Mesoscale and Nanoscale Physics · Physics 2022-12-21 M. Kulyk , M. Persson , D. Polishchuk , V. Korenivski

This work reports on the magnetic interlayer coupling between two amorphous CoFeB layers, separated by a thin Ru spacer. We observe an antiferromagnetic coupling which oscillates as a function of the Ru thickness x, with the second…

Materials Science · Physics 2007-05-23 N. Wiese , T. Dimopoulos , M. Ruhrig , J. Wecker , H. Bruckl , G. Reiss

Magnetic multilayers are a rich class of materials systems with numerous highly tunable physical parameters that determine both their magnetic and electronic properties. Here we present a comprehensive experimental study of a novel system,…

Materials Science · Physics 2022-06-02 Martin Lonsky , Myoung-Woo Yoo , Yi-Siou Huang , Jiangchao Qian , Jian-Min Zuo , Axel Hoffmann

Bilayer two-dimensional electron systems formed by a thin barrier in the GaAs buffer of a standard heterostructure were investigated by magnetotransport measurements. In magnetic fields oriented parallel to the electron layers, the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 O. N. Makarovskii , L. Smrcka , P. Vasek , T. Jungwirth , M. Cukr , L. Jansen

We studied the in-plane magnetic anisotropy of rf (radio frequency) sputtered [(FeTaN)/(TaN)](n) multilayers synthesized on Si substrates. In the multilayers where n=5, the FeTaN thickness is fixed at 30 nm and the thickness of TaN, t(TaN),…

Materials Science · Physics 2007-05-23 H. B. Nie , S. Y. Xu , J. Li , C. K. Ong , J. P. Wang