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Magnetic thin films at ferromagnetic resonance (FMR) leak angular momentum, which may be absorbed by adjacent layers. This phenomenon, known as spin pumping, is manifested by an increase in the resonance linewidth ($\Delta H$), and the…

Mesoscale and Nanoscale Physics · Physics 2017-09-08 Masoumeh Fazlali , Martina Ahlberg , Mykola Dvornik , Johan Åkerman

A spin model of LiCu2O2 compound with ground state of ellipsoidal helical structure has been adopted. Taking into account the interchain coupling and exchange anisotropy, we focus on the magnetoelectric properties in a rotating magnetic…

Materials Science · Physics 2015-06-18 Yan Qi , An Du

We show that in the metallic phase of a two dimensional electron gas the spin-orbit coupling due to structure inversion asymmetry leads to a characteristic anisotropy in the magnetoconductance. Within the assumption that the metallic phase…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 P. Schwab , R. Raimondi

In 3d-electron magnetic systems, the magnetic structures that transform each other by spin rotation have very close degenerate energies due to small spin-orbit coupling and can be easily controlled by chemical substitution and external…

Materials Science · Physics 2025-11-20 Vu Thi Ngoc Huyen , Yuki Yanagi , Michi-To Suzuki

Using quantum mechanical perturbation theory (PT) we analyze how the energy of perturbation of different orders is renormalized in solids. We test the validity of PT analysis by considering a specific case of spin-orbit coupling as a…

Materials Science · Physics 2014-07-11 Vladimir Antropov , Liqin Ke , Daniel Åberg

A quantum mechanical close coupling theory of spin relaxation in the stretched hyperfine level of sodium is presented. We calculate the dipolar relaxation rate of magnetically trapped cold sodium atoms in the magnetic field. The influence…

Atomic Physics · Physics 2007-05-23 B. Zygelman

Thermally-assisted ultra-fast magnetization reversal in a DC magnetic field for magnetic multilayer thin films with perpendicular anisotropy has been investigated in the time domain using femtosecond laser heating. The experiment is set-up…

Materials Science · Physics 2013-05-29 C. Bunce , J. Wu , G. Ju , B. Lu , D. Hinzke , N. Kazantseva , U. Nowak , R. W. Chantrell

We present an experimental and theoretical study of magnetocrystalline anisotropies in arrays of bars patterned lithographically into (Ga,Mn)As epilayers grown under compressive lattice strain. Structural properties of the (Ga,Mn)As…

Spin pumping effect is a sensitive and well-established experimental method in two-dimensional (2D) magnetic materials. We propose that spin pumping effect can be a valuable probe for non-Fermi liquid (NFL) behaviors at the 2D interface of…

Strongly Correlated Electrons · Physics 2025-03-19 Xiao-Tian Zhang , Yi-Hui Xing , Xu-Ping Yao , Yuya Ominato , Long Zhang , Mamoru Matsuo

The recently discovered giant magnetic anisotropy of single magnetic Co atoms raises the hope of magnetic storage in small clusters. We present a joint experimental and theoretical study of the magnetic anisotropy and the spin dynamics of…

Materials Science · Physics 2009-07-06 T. Balashov , T. Schuh , A. F. Takacs , A. Ernst , S. Ostanin , J. Henk , I. Mertig , P. Bruno , T. Miyamachi , S. Suga , W. Wulfhekel

We investigate the the itinerant ferromagnetism in a dipolar Fermi atomic system with the anisotropic spin-orbit coupling (SOC),which is traditionally explored with isotropic contact interaction.We first study the ferromagnetism transition…

We present a ferromagnetic resonance (FMR) study of the effect of Helium ion irradiation on the magnetic anisotropy, the linewidth and the Gilbert damping of a Co/Ni multilayer coupled to Co/Pd bilayers. The perpendicular magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Jean-Marc L. Beaujour , Andrew D. Kent , Dafine Ravelosona , Ioan Tudosa , Eric E. Fullerton

We develop a gauge theory for diffusive and precessional spin dynamics in two-dimensional electron gas with disorder. Our approach reveals a direct connections between the absence of the equilibrium spin current and strong anisotropy in the…

Other Condensed Matter · Physics 2010-05-19 I. V. Tokatly , E. Ya. Sherman

Spin superfluidity, i.e., coherent spin transport mediated by topologically stable textures, is limited by parasitic anisotropies rooted in relativistic interactions and spatial inhomogeneities. Since structural disorder in amorphous…

Mesoscale and Nanoscale Physics · Physics 2018-08-29 Hector Ochoa , Ricardo Zarzuela , Yaroslav Tserkovnyak

We study spin wave relaxation in quantum Hall ferromagnet regimes. Spin-orbit coupling is considered as a factor determining spin nonconservation, and external random potential as a cause of energy dissipation making spin-flip processes…

Mesoscale and Nanoscale Physics · Physics 2010-01-10 S. Dickmann , S. L. Artyukhin

We obtain control of magnetic anisotropy in epitaxial (Ga,Mn)As by anisotropic strain relaxation in patterned structures. The strain in the structures is characterized using sophisticated X-ray techniques. The magnetic anisotropy before…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 J. Wenisch , C. Gould , L. Ebel , J. Storz , K. Pappert , M. J. Schmidt , C. Kumpf , G. Schmidt , K. Brunner , L. W. Molenkamp

We study spin-transport in bilayer-graphene (BLG), spin-orbit coupled to a tungsten di sulfide (WS$_2$) substrate, and measure a record spin lifetime anisotropy ~40-70, i.e. ratio between the out-of-plane $\tau_{\perp}$ and in-plane spin…

Mesoscale and Nanoscale Physics · Physics 2019-10-23 Siddhartha Omar , Bettadahalli Nandishaiah Madhushankar , Bart Jan van Wees

The reorientation of the magnetization of a ferromagnetic monolayer is calculated with the help of many-body Green's function theory. This allows, in contrast to other spin wave theories, a satisfactory calculation of magnetic properties…

Strongly Correlated Electrons · Physics 2015-06-25 P. Fröbrich , P. J. Jensen , P. J. Kuntz

In the search for rare-earth free permanent magnets, various ideas related to shape anisotropy are being pursued. In this work we assess the limits of shape contributions to the reversal stability using micromagnetic simulations. In a first…

Materials Science · Physics 2016-03-30 Simon Bance , Johann Fischbacher , Thomas Schrefl , Inga Zins , Gotthard Rieger , Caroline Cassignol

We present the general kinetic formalism for the description of spin and energy relaxation of the cavity polaritons in the framework of the Born-Markov approximation. All essential mechanisms of polaritons redistribution in reciprocal space…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 D. D. Solnyshkov , I. A. Shelykh , M. M. Glazov , G. Malpuech , T. Amand , P. Renucci , X. Marie , A. V Kavokin