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Motivated by the recent measurements of Kondo resistivity in thin films and wires, where the Kondo amplitude is suppressed for thinner samples, the surface anisotropy for magnetic impurities is studied. That anisotropy is developed in those…

Strongly Correlated Electrons · Physics 2009-10-30 O. Ujsaghy , A. Zawadowski

We have studied the magnetic properties of multilayers composed of ferromagnetic metal Co and heavy metals with strong spin orbit coupling (Pt and Ir). Multilayers with symmetric (ABA stacking) and asymmetric (ABC stacking) structures are…

Anisotropy is an intrinsic factor that dictates the magnetic properties of YBCO, thus with great impact for many applications. Artificial pinning centres are often introduced in an attempt to mitigate its effect, resulting in less…

Superconductivity · Physics 2020-04-22 N. Pompeo , A Alimenti , K Torokhtii , E Bartolomé , A Palau , T Puig , A Augieri , V Galluzzi , A Mancini , G Celentano , X Obradors , E Silva

Using dc and ac magnetometry, the pressure dependence of the magnetization of the three-dimensional antiferromagnetic coordination polymer Mn(N(CN)$_{2}$)$_{2}$ was studied up to 12 kbar and down to 8K. The magnetic transition temperature,…

Materials Science · Physics 2015-02-03 P. A. Quintero , D. Rajan , M. K. Peprah , T. V. Brinzari , R. S. Fishman , D. R. Talham , M. W. Meisel

Very high magnetic anisotropies have been theoretically predicted for strained Fe-Co(-X) and indeed several experiments on epitaxial thin films seemed to confirm strain induced anisotropy enhancement. This study presents a critical analysis…

In this paper we analyze in details the electronic properties of (Co/Ni) multilayers, a model system for spintronics devices. We use magneto-optical Kerr (MOKE), spin-polarized photoemission spectroscopy (SRPES), x-ray magnetic circular…

Rotating the magnetization of a shape anisotropic magnetostrictive nanomagnet with voltage-generated stress/strain dissipates much less energy than most other magnetization rotation schemes, but its application to writing bits in…

Mesoscale and Nanoscale Physics · Physics 2017-07-12 Ayan Kumar Biswas , Hasnain Ahmad , Jayasimha Atulasimha , Supriyo Bandyopadhyay

The successful commercialization of flexible spintronic devices requires a complete understanding of the impact of external strain on the structural, electronic, and magnetic properties of a system. The impact of bending-induced strain on…

Ensuring a permanent increase of magnetic storage densities is one of the main challenges in magnetic recording. Conventional approaches based on single phase grains are not suitable to achieve this goal, because their grain volume is…

Computational Physics · Physics 2015-06-23 Christoph Vogler , Florian Bruckner , Dieter Suess , Christoph Dellago

Numerical simulations by means of the Monte Carlo method have been performed to study the electrical properties of a two-dimensional composite filled with rodlike particles. The main goal was to study the effect of the alignment of such…

We study various holographic pure and mixed state entanglement measures in the confined/deconfined phases of a bottom-up AdS/QCD model in the presence of a background magnetic field. We analyse the entanglement entropy, entanglement wedge…

High Energy Physics - Theory · Physics 2023-05-10 Parul Jain , Siddhi Swarupa Jena , Subhash Mahapatra

Based on statistical analysis of synchrotron polarization intensity, we study the anisotropic properties of compressible magnetohydrodynamic (MHD) turbulence. The second-order normalized structure function, quadrupole ratio modulus and…

High Energy Astrophysical Phenomena · Physics 2020-02-26 Ru-Yue Wang , Jian-Fu Zhang , Fu-Yuan Xiang

Explicit current-dependent expressions for anisotropic longitudinal and transverse nonlinear magnetoresistivities are represented and analyzed on the basis of a Fokker-Planck approach for two-dimensional single-vortex dynamics in a…

Superconductivity · Physics 2007-05-23 Valerij A. Shklovskij , Oleksandr V. Dobrovolskiy

Anisotropy effects can significantly control or modify the ground-state properties of magnetic systems. Yet the origin and the relative importance of the possible anisotropy terms is difficult to assess experimentally and often ambiguous.…

Strongly Correlated Electrons · Physics 2015-05-28 A. Furrer , F. Juranyi , K. W. Kraemer , M. Schneider , Th. Straessle

The dynamics of antiferromagnets is a current hot topic in condensed matter physics and spintronics. However, the dynamics of insulating antiferromagnets cannot be excited by an electric current, which is a method usually used to manipulate…

Mesoscale and Nanoscale Physics · Physics 2018-11-01 Laichuan Shen , Jing Xia , Guoping Zhao , Xichao Zhang , Motohiko Ezawa , Oleg A. Tretiakov , Xiaoxi Liu , Yan Zhou

We report a measurement for the anomalous Nernst effects induced by a temperature gradient in [CoSiB/Pt] multilayer films with perpendicular magnetic anisotropy. The Nernst voltage shows a characteristic hysteresis which reflects the…

Materials Science · Physics 2013-10-01 O. Kelekci , H. N. Lee , T. W. Kim , H. Noh

The dynamic behavior and stabilization of skyrmions in magnetic multilayers are critical for advancing spintronic and magnonic technologies. In our study, we investigate the static and dynamic properties of $[Re/Co(d_{Co})/Pt]_{20}$…

The anisotropy splitting in the ground state of the single-molecule magnet [Mn4O3Br(OAc)3(dbm)3] is studied by inelastic neutron scattering as a function of hydrostatic pressure. This allows a tuning of the anisotropy and thus the energy…

Strongly Correlated Electrons · Physics 2009-11-10 Andreas Sieber , Gregory Chaboussant , Roland Bircher , Colette Boskovic , Hans U. Guedel , George Christou , Hannu Mutka

External magnetic fields influence the microstructure of polycrystalline materials. We explore the influence of strong external magnetic fields on the long time scaling of grain size during coarsening in thin films with an extended…

Materials Science · Physics 2020-03-04 Rainer Backofen , Axel Voigt

We demonstrate that magnetic properties of ultra-thin Co films adjacent to Gd2O3 gate oxides can be directly manipulated by voltage. The Co films can be reversibly changed from an optimally-oxidized state with a strong perpendicular…