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Related papers: Non-monotonic angular magnetoresistance in asymmet…

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The electrical resistance of ferromagnetic/normal-metal (F/N) heterostructures depends on the nature of the junctions which may be tunnel barriers, point contacts, or intermetallic interfaces. For all junction types, the resistance of…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Gerrit E. W. Bauer , Yaroslav Tserkovnyak , Daniel Huertas-Hernando , Arne Brataas

Angular variation of giant magnetoresistance and spin-transfer torque in metallic spin-valve heterostructures is analyzed theoretically in the limit of diffusive transport. It is shown that the spin-transfer torque in asymmetric spin valves…

Other Condensed Matter · Physics 2009-11-13 M. Gmitra , J. Barnas

Resistance of certain (conductive and otherwise isotropic) ferromagnets turns out to exhibit anisotropy with respect to the direction of magnetisation: R$_\parallel$ different from R$_\perp$ with reference to the electric current direction.…

Materials Science · Physics 2023-10-31 Philipp Ritzinger , Karel Vyborny

The resistance of CPP spin valve is a continuous function of the angle $\theta $ between the magnetizations of both ferromagnets. We use the cicuit theory for non-collinear magnetoelectronics to compute the angular magnetoresistance of CPP…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Daniel Huertas-Hernando , Gerrit E. W. Bauer , Yu. V. Nazarov

Fluctuations of the magnetization in spin valves are shown to cause resistance noise that strongly depends on the magnetic configuration. Due to the applied external field and the dynamic exchange interaction through the normal metal…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Jorn Foros , Arne Brataas , Gerrit E. W. Bauer , Yaroslav Tserkovnyak

We investigate charge transport in two-dimensional ferromagnet/feromagnet junction on a topological insulator. The conductance across the interface depends sensitively on the directions of the magnetizations of the two ferromagnets, showing…

Mesoscale and Nanoscale Physics · Physics 2010-03-03 Takehito Yokoyama , Yukio Tanaka , Naoto Nagaosa

We predict the emergence of spin Hall magnetoresistance in a magnetic bilayer composed of a normal metal adjacent to an antiferromagnet. Based on a recently derived drift-diffusion equation, we show that the resistance of the bilayer…

Materials Science · Physics 2017-05-24 A. Manchon

Experimentally an asymmetry of the reversal modes has been found in certain exchange bias systems. From a numerical investigation of the domain state model evidence is gained that this effect depends on the angle between the easy axis of…

Condensed Matter · Physics 2009-11-10 B. Beckmann , U. Nowak , K. D. Usadel

We introduce a new class of spintronics devices in which a spin-valve like effect results from strong spin-orbit coupling in a single ferromagnetic layer rather than from injection and detection of a spin-polarized current by two coupled…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 C. Gould , C. Rüster , T. Jungwirth , E. Girgis , G. M. Schott , R. Giraud , K. Brunner , G. Schmidt , L. W. Molenkamp

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…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Arne Brataas , Gerrit E. W. Bauer , Paul J. Kelly

Nanoscale multifunctional perpendicular organic spin valves have been fabricated. The devices based on an La$_{0.7}$Sr$_{0.3}$MnO$_3$/Alq$_3$/Co trilayer show resistive switching of up to 4-5 orders of magnitude and magnetoresistance as…

Mesoscale and Nanoscale Physics · Physics 2016-10-27 Robert Göckeritz , Nico Homonnay , Alexander Müller , Bodo Fuhrmann , Georg Schmidt

We demonstrate that contrary to the common belief the critical temperature Tc of clean F1/S/F2 spin valves can depend non-monotonically on the angle between the magnetic moments of the ferromagnetic F1 and F2 layers. Depending on the system…

Superconductivity · Physics 2015-06-15 S. V. Mironov , A. Buzdin

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

Transverse magnetoresistance in a ferromagnetic/nonmagnetic/ferromagnetic trilayer originated from charge-spin conversion by anomalous Hall effect is investigated theoretically. Solving the spin diffusion equation in bulk and using the…

Mesoscale and Nanoscale Physics · Physics 2018-01-08 Tomohiro Taniguchi

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…

The conductance of a ferromagnetic particle depends on the relative orientation of the magnetization with respect to the direction of current flow. This phenomenon is known as "anisotropic magnetoresistance". Quantum interference leads to…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Shaffique Adam , Markus Kindermann , Saar Rahav , Piet W. Brouwer

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

We observe spin-valve-like effects in nano-scaled thermally evaporated Co/AlOx/Au tunnel junctions. The tunneling magnetoresistance is anisotropic and depends on the relative orientation of the magnetization direction of the Co electrode…

Popular Physics · Physics 2015-05-13 R. S. Liu , L. Michalak , C. M. Canali , L. Samuelson , H. Pettersson

The electrical resistance of a diffusive ferromagnet with magnetic domain walls is studied theoretically, taking into account the spatial dependence of the magnetization. The semiclassical domain wall resistance is found to be either…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 R. P. van Gorkom , Arne Brataas , Gerrit E. W. Bauer

We measure the low-temperature resistance of permalloy break junctions as a function of contact size and the magnetic field angle, in applied fields large enough to saturate the magnetization. For both nanometer-scale metallic contacts and…

Mesoscale and Nanoscale Physics · Physics 2013-02-07 Kirill I. Bolotin , Ferdinand Kuemmeth , D. C. Ralph
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