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Related papers: Interlayer interaction in multilayer CoPt/Co struc…

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Strong ferromagnetic interlayer exchange couplings $J$ in perpendicularly magnetized systems are becoming increasingly desirable for applications. We study whether ferromagnetic interlayer exchange couplings can be measured by a combination…

Materials Science · Physics 2016-04-22 Thibaut Devolder

Hard-soft bilayers are analogous to prototype exchange-biased ferromagnetic -antiferromagnetic systems as the minor loop of the soft layer is biased by the hard and furthermore they offer bias layer tunability. In sputtered CoPt/Co…

Materials Science · Physics 2016-04-01 V. Alexandrakis , D. Kechrakos , N. Moutis , D. Niarchos , G. Hadjipanayis , I. Panagiotopoulos

We investigate the cause of exchange anisotropy in a family of copper-based, quasi-two-dimensional materials with very similar geometries. This family differs mainly in the inter-layer separation, but have very different magnetic…

Materials Science · Physics 2021-08-02 E. P. Kenny , A. C. Jacko , B. J. Powell

Using combined magnetometry and ferromagnetic resonance studies, it is shown that introduction of a hydrocarbon cover layer leads to an increase of the contribution of the surface anisotropy to the effective magnetic anisotropy energy of…

We have carried out detailed experimental studies of the exchange bias effect of a series of CoO/Co(111) textured bilayers with different Co layer thickness, using the magneto-optical Kerr effect, SQUID magnetometry, polarized neutron…

Materials Science · Physics 2016-08-31 F. Radu , M. Etzkorn , R. Siebrecht , T. Schmitte , K. Westerholt , H. Zabel

Using spin-polarized low-energy electron microscopy to study magnetization in epitaxial layered systems, we found that the area vs perimeter relationship of magnetic domains in the top Fe layers of Fe/NiO/Fe(100) structures follows a…

Materials Science · Physics 2008-01-08 N. Rougemaille , M. Portalupi , A. Brambilla , P. Biagioni , A. Lanzara , M. Finazzi , A. K. Schmid , L. Duò

The magnetic coupling between single Co atoms adsorbed on a copper surface is determined by probing the Kondo resonance using low-temperature scanning tunneling spectroscopy. The Kondo resonance, which is due to magnetic correlation effects…

Strongly Correlated Electrons · Physics 2007-05-23 P. Wahl , P. Simon , L. Diekhoener , V. S. Stepanyuk , P. Bruno , M. A. Schneider , K. Kern

To characterize the possible magnetic structures created on magnetic multilayers a model has been formulated and studied. The interlayer inhomogeneous structures found indicate either (i) a regular periodic, (ii) a quasiperiodic change in…

Materials Science · Physics 2009-10-31 F. V. Kusmartsev , H. S. Dhillon , M. D. Crapper

We study the effects of the exchange interaction between an adsorbed magnetic atom with easy-axis magnetic anisotropy and the conduction-band electrons from the substrate. We model the system using an anisotropic Kondo model and we compute…

Mesoscale and Nanoscale Physics · Physics 2010-08-10 Rok Zitko , Thomas Pruschke

We studied electric field modification of magnetic properties in a Pt/Co/AlO$_x$ trilayer via magneto-optical Kerr microscopy. We observed the spontaneous formation of labyrinthine magnetic domain structure due to thermally activated domain…

The interlayer exchange coupling (IEC) between two ferromagnetic (FM) layers separated by a non-magnetic (NM) spacer layer gives rise to different types of coupling with the variation of spacer layer thickness. When the NM is metallic, the…

Materials Science · Physics 2024-03-11 Shaktiranjan Mohanty , Brindaban Ojha , Minaxi Sharma , Subhankar Bedanta

We investigate theoretically the effects of intralayer and interlayer exchange in biased double-layer electron and hole systems, in the absence of a magnetic field. We use a variational Hartree-Fock-like approximation to analyze the effects…

Strongly Correlated Electrons · Physics 2009-10-31 C. B. Hanna , Dylan Haas , J. C. Diaz-Velez

This work explores the static and dynamic magnetic properties of weakly antiferromagnetically coupled Fe/Ti superlattices, emphasizing the link between magnetic behavior and structural characteristics. HRTEM and XRD analyses confirm…

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

Magnetic topological insulator is a fertile platform to study the interplay between magnetism and topology. The unique electronic band structure can induce exotic transport and optical properties. However, a comprehensive optical study in…

Materials Science · Physics 2024-09-05 Xingyue Han , Hee Taek Yi , Seongshik Oh , Liang Wu

We computed spin wave dispersions of surface-reconstructed Co films on the W(110) surface in the adiabatic approximation. The magnetic exchange interactions are obtained via first-principles electronic structure calculations using the…

Mesoscale and Nanoscale Physics · Physics 2017-04-11 Flaviano José dos Santos , Manuel dos Santos Dias , Samir Lounis

The electronic structure of anti-ferromagnetic $Cr_{2}As$ is investigated. Anisotropy of exchange interactions between chrome sub-lattices is determined ($J^{X}(Cr_{I}-Cr_{II}) =4.77 meV,J^{Y}(Cr_{I}-Cr_{II}) =-6.36 meV$). The behavior of…

Materials Science · Physics 2019-02-12 V. I. Valkov , A. V. Golovchan , U. Aparajita , O. Roslyak

Multilayers of heavy metals and ferromagnets are the basis for the formation of various structures with inhomogeneous chiral magnetic distributions. The most informative method for studying magnetic states in such structures with a high…

Materials Science · Physics 2021-01-08 D. A. Tatarskiy , N. S. Gusev , S. A. Gusev

We investigate the effect of capping layer (CAP) on the interfacial magnetic anisotropy energy density (K_S), magnetic damping ({\alpha}), and spin-orbit torques (SOTs) in heavy-metal (Pt) / ferromagnet (Co or Py) / CAP (MgO/Ta, HfOx, or…

Mesoscale and Nanoscale Physics · Physics 2019-01-18 DongJoon Lee , WonMin Jeong , DeokHyun Yun , Seung-Young Park , Byeong-Kwon Ju , Kyung-Jin Lee , Hyun Cheol Koo , Byoung-Chul Min , OukJae Lee

We show that, upon the chemisorption of organic molecules, Co thin films display a number of unique magnetic properties, including the giant magnetic hardening and the violation of the Rayleigh law in magnetization reversal. These novel…

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