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Related papers: Current-induced synchronized switching of magnetiz…

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The stability is analyzed of the equilibrium configurations of a magnetic junction with a free layer that has cubic symmetry and two anisotropy axes in the layer plane. Different variants of the switching between various configurations are…

Materials Science · Physics 2010-07-14 S. G. Chigarev , E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman

The reversal of the magnetization under the influence of a field pulse has been previously predicted to be an incoherent process with several competing phenomena such as domain wall relaxation, spin wave-mediated instability regions, and…

The spin transfer torque generated by a spin-polarized current can induce the shift of the magnetic domain-wall position. In this work, we study theoretically the current-induced domain-wall motion by using the collective coordinate…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Soon-Wook Jung , Hyun-Woo Lee

We propose the spin swapping effect for an exchange magnon spin current in a perpendicularly magnetized ferromagnetic medium with in plane anisotropy on the surface. The excitation of a magnon current flowing along an in-plane direction…

Mesoscale and Nanoscale Physics · Physics 2023-07-03 Shuting Cui , Peng Yan , Wei Luo , Xiaofei Yang , Yue Zhang

Current induced switching in Co/Cu/Co trilayers is described in terms of ab-initio determined magnetic twisting energies and corresponding sheet resistances. In viewing the twisting energy as an energy flux the characteristic time thereof…

Materials Science · Physics 2009-11-10 P. Weinberger , A. Vernes , B. L. Gyorffy , L. Szunyogh

We proposed a novel and simple multilayer structure to realize the deterministic switching of perpendicularly magnetized layers (Co in our work) by spin orbital torque from the spin Hall Effect in this paper. A pinned layer is introduced,…

Computational Physics · Physics 2017-05-08 Sumei Wang

The current-induced spin polarization and momentum-dependent spin-orbit field were measured in In$_{x}$Ga$_{1-x}$As epilayers with varying indium concentrations and silicon doping densities. Samples with higher indium concentrations and…

Mesoscale and Nanoscale Physics · Physics 2017-11-22 M. Luengo-Kovac , S. Huang , D. Del Gaudio , J. Occena , R. S. Goldman , R. Raimondi , V. Sih

We study spin-transfer-torque driven magnetization dynamics of a perpendicular magnetic tunnel junction (MTJ) nanopillar. Based on the combination of spin-torque ferromagnetic resonance and microwave spectroscopy techniques, we demonstrate…

Mesoscale and Nanoscale Physics · Physics 2023-04-11 Kaiyuan Zhou , Lina Chen , Kequn Chi , Qingwei Fu , Zui Tao , Like Liang , Zhenyu Gao , Haotian Li , Hao Meng , Bo Liu , Tiejun Zhou , R. H. Liu

Current induced magnetization switching and resistance associated with domain walls pinned in nanoconstrictions have both been previously reported in (Ga,Mn)As based devices, but using very dissimilar experimental schemes and device…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 C. Gould , K. Pappert , C. Rüster , R. Giraud* , T. Borzenko , G. M. Schott , K. Brunner , G. Schmidt , L. W. Molenkamp

Current-induced switching from metallic to insulating state is observed in phase-separated states of (La_{1-y}Pr_y)_{0.7}Ca_{0.3}MnO_3 (y=0.7) and Nd_{0.5}Ca_{0.5}Mn_{1-z}Cr_zO_3 (z=0.03) crystals. Application of magnetic fields to this…

Strongly Correlated Electrons · Physics 2009-11-11 M. Tokunaga , H. Song , Y. Tokunaga , T. Tamegai

Synchronization and chaos caused by alternating current and microwave field in a spin torque oscillator consisting of a perpendicularly magnetized free layer and an in-plane magnetized reference layer is comprehensively studied…

Mesoscale and Nanoscale Physics · Physics 2019-12-25 Terufumi Yamaguchi , Nozomi Akashi , Kohei Naka jima , Sumito Tsunegi , Hitoshi Kubota , Tomohiro Taniguchi

Tunneling surface current through a thin ferromagnetic barrier in a three-dimensional topological insulator is shown to possess an extraordinary response to the orientation of barrier magnetization. In contrast to conventional…

Strongly Correlated Electrons · Physics 2015-05-27 B. D. Kong , Y. G. Semenov , C. Krowne , K. W. Kim

The research into insulating ferrimagnetic garnets has gained enormous momentum in the past decade. This is partly due to the improvement in the techniques to grow high-quality ultrathin films with desirable properties and the advances in…

Materials Science · Physics 2021-05-26 Can Onur Avci

We theoretically investigate the nonlinear response current of a two-dimensional system under an in-plane magnetic field. Based on the extended semiclassical theory, we develop a unified theory including both longitudinal and transverse…

Mesoscale and Nanoscale Physics · Physics 2023-06-26 Yue-Xin Huang , Yang Wang , Hui Wang , Cong Xiao , Xiao Li , Shengyuan A. Yang

An analytical and numerical approach is developped to pinpoint the optimal experimental conditions to irreversibly switch magnetization using surface acoustic waves (SAWs). The layers are magnetized perpendicular to the plane and two…

We analyse the effect of a strong perpendicular magnetic field on an intersubband transition in a disordered doped quantum well strongly coupled to an optical cavity. The magnetic field changes the lineshape of the intersubband optical…

Several recent experimental studies have confirmed the possibility of switching the magnetization direction in the small magnetic domains by pumping large spin-polarized currents through them. On the basis of equations proposed by…

Condensed Matter · Physics 2009-10-31 Ya. B. Bazaliy , B. A. Jones , Shou-Cheng Zhang

Thermoelectric manipulation of the magnetization of a magnetic layered stack in which a low-Curie temperature magnet is sandwiched between two strong magnets (exchange spring device) is considered. Controllable Joule heating produced by a…

Mesoscale and Nanoscale Physics · Physics 2015-07-22 A. M. Kadigrobov , R. I. Shekhter , M. Jonson

We study the dependence of perpendicular-current magnetoresistance in magnetic multilayers on the angle between the magnetizations of the layers. This dependence varies with the thickness of one of the layers, and is different for…

Materials Science · Physics 2007-05-23 S. Urazhdin , R. Loloee , W. P. Pratt

Theoretically, we study the dynamics of a current induced domain wall in the bi-layer structure consists of a ferromagnetic layer and a non-magnetic metal layer with strong spin-orbit coupling in the presence of spin-Hall effect. The…

Materials Science · Physics 2015-05-21 R. Arun , P. Sabareesan , M. Daniel