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Related papers: Current induced magnetization switching in magneti…

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We investigate the current induced magnetization dynamics and magnetization switching in an unconventional p-wave superconductor sandwiched between two misaligned ferromagnetic layers by numerically solving Landau-Lifshitz-Gilbert equation…

Superconductivity · Physics 2019-10-15 Saumen Acharjee , Umananda Dev Goswami

In a magnetic multilayer, magnetizations can be manipulated by spin transfer torque. Both spin transfer torque and its reciprocal effect, spin pumping, are governed by spin mixing conductance. The magnitude of spin mixing conductance at the…

Mesoscale and Nanoscale Physics · Physics 2021-12-15 Adam B. Cahaya , Muhammad Aziz Majidi

We report on our theoretical study of the inverse TMR effect in the spin polarized transport through a narrow channel. In the weak tunneling limit, we find the ordinary positive TMR. The TMR changes its sign as the transmission probability…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Tae-Suk Kim

Injection of spins into semiconductors is essential for the integration of the spin functionality into conventional electronics. Insulating layers are often inserted between ferromagnetic metals and semiconductors for obtaining an efficient…

Mesoscale and Nanoscale Physics · Physics 2014-10-06 Oihana Txoperena , Yang Song , Lan Qing , Marco Gobbi , Luis E. Hueso , Hanan Dery , Fèlix Casanova

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

We have investigated the current-induced spin transfer torque of a ferromagnet-insulator-ferromagnet tunnel junction by taking the spin-flip scatterings into account. It is found that the spin-flip scattering can induce an additional spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Zhen-Gang Zhu , Gang Su , Biao Jin , Qing-Rong Zheng

Molecular bridges covalently bonded to two ferromagnetic electrodes can transform ferromagnetic materials and produce intriguing spin transport characteristics. This paper discusses the impact of molecule induced strong coupling on spin…

Materials Science · Physics 2019-12-04 Pawan Tyagi , Edward Friebe

The effect of spin-disorder scattering on perpendicular transport in a magnetic monolayer is considered within the single-site Coherent Potential Approximation (CPA). The exchange interaction between a conduction electron and localized…

Disordered Systems and Neural Networks · Physics 2009-11-07 Alireza Saffarzadeh

Interband quantum tunneling of electrons in semiconductors is of intense recent interest as the underlying transport mechanism in tunneling field-effect transistors. Such transistors can potentially perform electronic switching with lower…

Materials Science · Physics 2015-06-15 Nan Ma , Debdeep Jena

Characteristic results of magnetism in small particles and thin films are presented. As a consequence of the reduced atomic coordination in small clusters and thin films the electronic states and density of states modify. Thus magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 K. H. Bennemann

We present a computationally efficient strategy that allows to simulate magnetization switching driven by spin-transfer torque in magnetic tunnel junctions within a micromagnetic model coupled with a matrix-based non-equilibrium Green's…

Computational Physics · Physics 2025-02-28 Peter Flauger , Claas Abert , Dieter Suess

In this work, the effect of electrical coupling on stochastic switching of two in-plane superparamagnetic tunnel junctions (SMTJs) is studied, using experimental measurements as well as simulations. The coupling mechanism relies on the…

Mesoscale and Nanoscale Physics · Physics 2023-07-31 Leo Schnitzspan , Mathias Kläui , Gerhard Jakob

Molecular spintronics is made possible by the coupling between electronic configuration and magnetic po- larization of the molecules. For control and application of the individual molecular states it is necessary to both read and write…

Mesoscale and Nanoscale Physics · Physics 2016-04-27 T. Saygun , J. Bylin , H. Hammar , J. Fransson

A selfconsistent theory of the current-induced switching of magnetization using nonequilibrium Keldysh formalism is developed for a junction of two ferromagnets separated by a nonmagnetic spacer. It is shown that the spin-transfer torques…

Other Condensed Matter · Physics 2009-11-10 D. M. Edwards , F. Federici , J. Mathon , A. Umerski

We predict that the spin-transfer, $T_{i,||}$, and field-like, $T_{i,\bot}$, components of the {\it local} spin torque are dramatically enhanced in double-barrier magnetic tunnel junctions. The {\it spin-mixing} enhancement is due to the…

Mesoscale and Nanoscale Physics · Physics 2007-10-30 Ioannis Theodonis , Alan Kalitsov , Nicholas Kioussis

Nonequilibrium electron spin polarization is calculated under spin injection from one ferromagnet to another in magnetic junction. It is shown that the nonequilibrium spin polarization can be comparable with equilibrium one if the material…

Materials Science · Physics 2007-05-23 E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman , A. I. Krikunov

A magnetic field induced electric polarization and the corresponding change of an effective junction capacitance are considered within a 3D model of disordered Josephson junction arrays. At some threshold field (near the Josephson network…

Superconductivity · Physics 2007-05-23 Sergei A. Sergeenkov

The switching of magnetic layers is studied under the action of a spin current in a ferromagnetic metal/non-magnetic metal/ferromagnetic metal spin valve. We find that the main contribution to the switching comes from the non-equilibrium…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 C. Heide , P. E. Zilberman , R. J. Elliott

It is shown that in a structure consisting of a superconducting ring-shaped electrode overlapped by a normal metal contact through a thin oxide barrier, measurements of the tunnel current in magnetic field can probe persistent currents in…

Superconductivity · Physics 2009-04-07 K. Yu. Arutyunov , T. T. Hongisto , D. Y. Vodolazov

Spin-orbitronics, based on both spin and orbital angular momentum, presents a promising pathway for energy-efficient memory and logic devices. Recent studies have demonstrated the emergence of orbital currents in light transition metals…

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