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We study theoretically the spin transport in a nonmagnetic metal connected to ferromagnetic injector and detector electrodes. We derive a general expression for the spin accumulation signal which covers from the metallic to the tunneling…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 S. Takahashi , S. Maekawa

We study interaction effects on transport through a small metallic cluster connected to two ferromagnetic leads (a single-electron spin-valve transistor) in the "orthodox model" for the Coulomb blockade. The non-local exchange between the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Wouter Wetzels , Gerrit E. W. Bauer , Milena Grifoni

We investigate magnetotransport in a ferromagnetic/normal/ferromagnetic graphene junction where a gate electrode is attached to the normal segment. It is shown that the charge conductance can be maximal at an antiparallel configuration of…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Takehito Yokoyama , Jacob Linder

We theoretically study the spin-polarized transport through a single-molecule magnet, which is weakly coupled to ferromagnetic leads, by means of the rate-equation approach. We consider both the ferromagnetic and antiferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2012-03-22 Haiqing Xie , Qiang Wang , Bo Chang , Hujun Jiao , J. -Q. Liang

We revisit the transport of spin-degrees of freedom across an electrically and thermally biased tunnel junction between two ferromagnets with non-collinear magnetizations. Besides the well-known charge and spin currents we show that a…

Mesoscale and Nanoscale Physics · Physics 2014-07-18 Michael Hell , Sourin Das , Maarten Rolf Wegewijs

We study the magnon transport in the nonlocal configuration composed of two Pt strips on top of yttrium iron garnet, with and without the presence of RF microwave generated by an on-chip antenna. We find that the spin-Hall induced thermal…

Applied Physics · Physics 2019-10-28 Yabin Fan , Justin T. Hou , Joseph Finley , Se Kwon Kim , Yaroslav Tserkovnyak , Luqiao Liu

An electron interferometer was designed and fabricated via a normal metal/insulator/ferromagnet non-local lateral spin valve with a ring-shaped normal metal/insulator spacer, and spin current interference was observed. A very high spin…

Mesoscale and Nanoscale Physics · Physics 2019-02-14 Ning Lu , Jian-Sheng Xia

Current-driven spin torques in metallic spin-valves composed of antiferromagnets are theoretically studied using the non-equilibrium Green's function method implemented on a tight-binding model. We focus our attention on G-type and L-type…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Hamed Ben Mohamed Saidaoui , Xavier Waintal , Aurelien Manchon

Spin-polarized transport through a marginal Fermi liquid (MFL) which is connected to two noncollinear ferromagnets via tunnel junctions is discussed in terms of the nonequilibrium Green function approach. It is found that the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Hai-Feng Mu , Gang Su , Qing-Rong Zheng , Biao Jin

A novel scheme for non-volatile digital computation is proposed using spin-transfer torque (STT) and automotion of magnetic domain walls (DWs). The basic computing element is composed of a lateral spin valve (SV) with two ferromagnetic (FM)…

Emerging Technologies · Computer Science 2016-09-21 Sou-Chi Chang , Sasikanth Manipatruni , Dmitri E. Nikonov , Ian A. Young , Azad Naeemi

When two fully polarized ferromagnetic (F) wires with opposite polarizations make contact with a spin-singlet superconductor, a potential-induced current in wire 1 induces a non-local current of equal magnitude and sign in wire 2. The…

Mesoscale and Nanoscale Physics · Physics 2017-08-23 C. J. Lambert , J. Koltai , J. Cserti

Injection and detection of spin accumulation in a semiconductor having localized states at the interface is evaluated. Spin transport from a ferromagnetic contact by sequential, two-step tunneling via interface states is treated not in…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 R. Jansen , A. M. Deac , H. Saito , S. Yuasa

We report on nonlocal spin transport in mesoscopic superconducting aluminum wires in contact with the ferromagnetic insulator europium sulfide. We find spin injection and long-range spin transport in the regime of the exchange splitting…

Superconductivity · Physics 2014-10-17 M. J. Wolf , C. Sürgers , G. Fischer , D. Beckmann

We present measurements of pure spin current absorption on lateral spin valves. By varying the width of the absorber we demonstrate that spin current absorption measurements enable to characterize efficiently the spin transport properties…

Materials Science · Physics 2018-12-05 G. Zahnd , Laurent Vila , V. Pham , M Cosset-Cheneau , W Lim , A Brenac , P Laczkowski , A Marty , J Attané

We investigate spin transport in two dimensional ferromagnetic (FTI) and antiferromagnetic (AFTI) topological insulators. In presence of an in plane magnetization AFTI supports zero energy modes, which enables topologically protected edge…

Mesoscale and Nanoscale Physics · Physics 2017-01-26 Sumit Ghosh , Aurelien Manchon

The spin absorption process in a ferromagnetic material depends on the spin orientation relativelyto the magnetization. Using a ferromagnet to absorb the pure spin current created within a lateralspin-valve, we evidence and quantify a…

Spin-valve is a microelectronic device in which high and low resistance states are realized by utilizing both charge and spin of carriers. Spin-valve structures used in modern hard drive read-heads and magnetic random access memories…

Departing from the conventional view on superconducting vortices as a parasitic source of dissipation for charge transport, we propose to use mobile vortices as topologically-stable information carriers for spin transport. To this end, we…

Mesoscale and Nanoscale Physics · Physics 2018-11-01 Se Kwon Kim , Roberto Myers , Yaroslav Tserkovnyak

Spin-waves in antiferromagnets hold the prospects for the development of faster, less power-hungry electronics, as well as promising physics based on spin-superfluids and coherent magnon-condensates. For both these perspectives, addressing…

Mesoscale and Nanoscale Physics · Physics 2023-08-21 A. El Kanj , O. Gomonay , I. Boventer , P. Bortolotti , V. Cros , A. Anane , R. Lebrun

The spin flip of the conduction electrons at the interface of a ferromagnetic and a nonmagnetic part of a metallic wire, suspended between two electrodes, is shown to tort the wire when a current is driven through it. In order to enhance…

Strongly Correlated Electrons · Physics 2016-10-26 Peter Fulde , Stefan Kettemann