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Related papers: Spin-transfer in diffusive ferromagnet-normal meta…

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We report direct electrical detection of spin pumping, using a lateral normal metal/ferromagnet/normal metal device, where a single ferromagnet in ferromagnetic resonance pumps spin polarized electrons into the normal metal, resulting in…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. V. Costache , M. Sladkov , S. M. Watts , C. H. van der Wal , B. J. van Wees

The role of the growth conditions in the spin transport properties of silver (Ag) have been studied by using lateral spin valve structures. By changing the deposition conditions of Ag from polycrystalline to epitaxial growth, we have…

We investigate spin transport by thermally excited spin waves in an antiferromagnetic insulator. Starting from a stochastic Landau-Lifshitz-Gilbert phenomenology, we obtain the out-of-equilibrium spin-wave properties. In linear response to…

Mesoscale and Nanoscale Physics · Physics 2018-11-05 Scott A. Bender , Hans Skarsvåg , Arne Brataas , Rembert A. Duine

The recently developed semiclassical theory for magnetoelectronic circuits is applied to a transistor-like device consisting of a normal metal island and three magnetic terminals. The electric current between source and drain can be…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Gerrit E. W. Bauer , Yuli V. Nazarov , Arne Brataas

Experimentally observed ultrafast all-optical magnetization reversal in ferrimagnetic metals and heterostructures based on antiferromagnetically coupled ferromagnetic $d-$ and $f-$metallic layers relies on intricate energy and angular…

Strongly Correlated Electrons · Physics 2016-03-02 Alexandra Kalashnikova , Veniamin Kozub

The spin-valve complex magnetoimpedance of symmetric ferromagnet/normal metal/ferromagnet junctions is investigated within the drift-diffusion (standard) model of spin injection. The ac magnetoresistance---the real part difference of the…

Other Condensed Matter · Physics 2011-12-01 Denis Kochan , Martin Gmitra , Jaroslav Fabian

Recent theories of spin-current-induced magnetization reversal are formulated in terms of a spin-mixing conductance $G^{mix}$. We evaluate $G^{mix}$ from first-principles for a number of (dis)ordered interfaces between magnetic and…

Materials Science · Physics 2009-11-07 K. Xia , P. J. Kelly , G. E. W. Bauer , A. Brataas , I. Turek

Spin transport electronics - spintronics - focuses on utilizing electron spin as a state variable for quantum and classical information processing and storage. Some insulating materials, such as diamond, offer defect centers whose…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 J. Cardellino , N. Scozzaro , M. R. Herman , A. J. Berger , C. Zhang , K. C. Fong , C. Jayaprakash , D. V. Pelekhov , P. C. Hammel

Spin waves that can propagate in normal and superconducting metals are investigated. Unlike normal metals, the velocity of spin waves becomes temperature-dependent in a superconductor. The low frequency spin waves survive within the narrow…

Superconductivity · Physics 2023-03-21 Serguei N. Burmistrov

We demonstrate a technique that enables ferromagnetic resonance (FMR) measurements of the normal modes for magnetic excitations in individual nanoscale ferromagnets, smaller in volume by a factor of 1000 than can be probed by other methods.…

Materials Science · Physics 2009-11-11 J. C. Sankey , P. M. Braganca , A. G. F. Garcia , I. N. Krivorotov , R. A. Buhrman , D. C. Ralph

Spin-1 condensed matter systems characterized by the combination of a Dirac-like dispersion and flat bands are ideal for realizing high-temperature electronics and spintronic technologies in the absence of external magnetic field. In this…

Mesoscale and Nanoscale Physics · Physics 2019-07-19 Muhammad Nadeem , Xiaolin Wang

The spin current can result in a spin-transfer torque in the normal-metal(NM)|ferromagnetic-insulator(FMI) or normal-metal(NM)|ferromagnetic-metal(FMM) bilayer. In the earlier study on this issue, the spin relaxations were ignored or…

Mesoscale and Nanoscale Physics · Physics 2018-02-07 D. X. Li , H. Z. Shen , H. D. Liu , X. X. Yi

We address two finite size effects in perpendicular transport through magnetic multilayers. When the magnetic layer thickness in spin valves becomes of the order or smaller than the spin-flip diffusion length, structural asymmetries affect…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Alexey A. Kovalev , Gerrit E. W. Bauer , Arne Brataas

The spin diffusion and damped oscillations are studied in the collision of two spin polarized clouds of cold atoms with resonant interactions. The strong density dependence of the diffusion coefficient leads to inhomogeneous spin diffusion…

Quantum Gases · Physics 2015-06-03 H. Heiselberg

We study the effect of the electron-electron interaction on the transport of spin polarized currents in metals and doped semiconductors in the diffusive regime. In addition to well-known screening effects, we identify two additional…

Strongly Correlated Electrons · Physics 2009-11-07 Irene D'Amico , Giovanni Vignale

We study shot noise and cross correlations in a four terminal spin-valve geometry using a Boltzmann-Langevin approach. The Fano factor (shot noise to current ratio) depends on the magnetic configuration of the leads and the spin-flip…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 W. Belzig , M. Zareyan

Improved fabrication techniques have enabled the possibility of ballistic transport and unprecedented spin manipulation in ultraclean graphene devices. Spin transport in graphene is typically probed in a nonlocal spin valve and is analyzed…

Mesoscale and Nanoscale Physics · Physics 2020-05-25 Marc Vila , Jose H. Garcia , Aron W. Cummings , Stephen R. Power , Christoph W. Groth , Xavier Waintal , Stephan Roche

A mechanism of the high temperature ferromagnetism in polymerized fullerenes is suggested. It is assumed that some of the C$_{60}$ molecules in the crystal become magnetically active due to spin and charge transfer from the paramagnetic…

Other Condensed Matter · Physics 2009-11-11 O. E. Kvyatkovskii , I. B. Zakharova , A. L. Shelankov , T. L. Makarova

It is well known that the association of parahydrogen (pH2) with an unsaturated molecule or a transient metalorganic complex can enhance the intensity of NMR signals; the effect is known as parahydrogen-induced polarization (PHIP). During…

Chemical Physics · Physics 2024-09-26 Andrey N. Pravdivtsev , Danila A. Barskiy , Jan-Bernd Hövener , Igor V. Koptyug

Spin transport properties at finite electric and magnetic fields are studied by using the generalized semiclassical Boltzmann equation. It is found that the spin diffusion equation for non-equilibrium spin density and spin currents involves…

Materials Science · Physics 2009-11-07 Y. Qi , S. Zhang