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The transmission of a dipole-dominated spin wave in a ferromagnetic film through a localised inhomogeneity in the form of a magnetic field produced by a dc current through a wire placed on the film surface was studied experimentally and…

材料科学 · 物理学 2009-03-05 M. P. Kostylev , A. A. Serga , T. Schneider , B. Leven , B. Hillebrands , R. L. Stamps

Spin-orbit coupling in ferromagnets gives rise to the anomalous Hall effect and the anisotropic magnetoresistance, both of which can be used to create spin-transfer torques in a similar manner as the spin Hall effect. In this paper we show…

材料科学 · 物理学 2014-11-19 Tomohiro Taniguchi , J. Grollier , M. D. Stiles

The electron transport properties of hybrid ferromagnetic|normal metal structures such as multilayers and spin valves depend on the relative orientation of the magnetization direction of the ferromagnetic elements. Whereas the contrast in…

介观与纳米尺度物理 · 物理学 2009-11-11 Arne Brataas , Gerrit E. W. Bauer , Paul J. Kelly

Equilibrium magnetization distribution of the vortex state magnetic nanoparticle is affected by the influence of the spin-transfer torque: an off-center out--of--plane vortex appears in the case of the disk shape particle and pure planar…

介观与纳米尺度物理 · 物理学 2015-05-20 Volodymyr P. Kravchuk , Denis D. Sheka , Franz G. Mertens , Yuri Gaididei

This study explores the time-dependent spin transport phenomena in magnetic heterostructures under alternating currents (AC), advancing the relatively underdeveloped field of alternating spintronics. Employing a time-dependent spin…

介观与纳米尺度物理 · 物理学 2026-01-13 Yunwen Liu , Jiang Xiao

Organic spintronic devices have been appealing because of the long spin life time of the charge carriers in the organic materials and their low cost, flexibility and chemical diversity. In previous studies, the control of resistance of…

In systems with strong spin-orbit coupling, the relationship between spin-transfer torque and the divergence of the spin current is generalized to a relation between spin transfer torques, total angular momentum current, and mechanical…

介观与纳米尺度物理 · 物理学 2015-05-19 Paul M. Haney , M. D. Stiles

Phase transitions in many-body systems are often associated with the emergence of spatial inhomogeneities. Such features may develop at microscopic lengthscales and are not necessarily evident in measurements of macroscopic quantities. In…

Monolayer graphene with an energy gap presents a pseudospin symmetry broken ferromagnet with a perpendicular pseudomagnetization whose direction is switched by altering the type of doping between n and p. We demonstrate an electrical…

介观与纳米尺度物理 · 物理学 2015-05-30 Leyla Majidi , Malek Zareyan

The aim of voltage control of magnetism is to reduce the power consumption of spintronic devices. For a spin valve, the magnetization directions of two ferromagnetic layers determine the giant magnetoresistance magnitude. However, achieving…

介观与纳米尺度物理 · 物理学 2024-05-28 Lujun Wei , Yiyang Zhang , Fei Huang , Jiajv Yang , Jincheng Peng , Yanghui Li , Yu Lu , Jiarui Chen , Tianyu Liu , Yong Pu , Jun Du

We derive kinetic equations describing injection and transport of spin polarized carriers in organic semiconductors with hopping conductivity via an impurity level. The model predicts a strongly voltage dependent magnetoresistance, defined…

介观与纳米尺度物理 · 物理学 2015-02-06 A. V. Shumilin , V. V. Kabanov , V. A. Dediu

We observe magnetization dynamics induced by spin momentum transfer in the noise spectra of current perpendicular to the plane giant magnetoresistance spin valves. The dynamics are observable only for those combinations of current direction…

材料科学 · 物理学 2009-11-10 M. Covington , M. AlHajDarwish , Y. Ding , N. J. Gokemeijer , M. A. Seigler

Spin-valve structures are usually associated with the ability to modify the resistance of electrical currents. We here demonstrate a profoundly different effect of a spin-valve. In combination with a topological insulator and…

超导电性 · 物理学 2018-10-10 Morten Amundsen , Henning G. Hugdal , Asle Sudbø , Jacob Linder

We study the phase distribution around a vortex in uniform motion. We consider both the cases of neutral and charged superfluids. The motion of the vortex causes the density of the system to fluctuate. This in turn produces a compensating…

超导电性 · 物理学 2009-10-31 D. M. Gaitonde

Use of a spin polarized current for the manipulation of magnetic domain walls in ferromagnetic nanowires has been the subject of intensive research for many years. Recently, due to technological advancements, creating nano-contacts with…

介观与纳米尺度物理 · 物理学 2020-08-10 Hamidreza Kazemi , Sebastian Eggert , Nicholas Sedlmayr

Spin transfer torque in spin valves usually destabilizes one of the collinear configurations (either parallel or antiparallel) and stabilizes the second one. Apart from this, balance of the spin-transfer and damping torques can lead to…

介观与纳米尺度物理 · 物理学 2009-11-11 M. Gmitra , J. Barnas

At high densities fluids of strongly dipolar spherical particles exhibit spontaneous long-ranged orientational order. Typically, due to demagnetization effects induced by the long range of the dipolar interactions, the magnetization…

软凝聚态物质 · 物理学 2009-10-30 B. Groh , S. Dietrich

Transport properties of ferromagnetic/non-magnetic/ferromagnetic single electron transistors are investigated as a function of external magnetic field, temperature, bias and gate voltage. By designing the magnetic electrodes to have…

介观与纳米尺度物理 · 物理学 2009-11-07 Jan Johansson , Mattias Urech , David Haviland , V. Korenivski

We present a relativistic description of electron vortex beams in a homogeneous magnetic field. Including spin from the beginning reveals that spin-polarized electron vortex beams have a complicated azimuthal current structure, containing…

量子物理 · 物理学 2017-07-21 Koen van Kruining , Armen G. Hayrapetyan , Jörg B. Götte

Spin waves are promising candidates to carry, transport, and process information. Controlling the propagation characteristics of spin waves in magnetic materials is an essential ingredient for designing spin-wave based computing…

应用物理 · 物理学 2020-07-29 Morteza Mohseni , Burkard Hillebrands , Philipp Pirro , Mikhail Kostylev