中文
相关论文

相关论文: Theory of Angular Magnetoresistance in CPP spin va…

200 篇论文

The charge and spin diffusion equations taking into account spin-flip and spin-transfer torque were numerically solved using a finite element method in complex non-collinear geometry with strongly inhomogeneous current flow. As an…

介观与纳米尺度物理 · 物理学 2011-07-14 N. Strelkov , A. Vedyayev , N. Ryzhanova , D. Gusakova , L. D. Buda-Prejbeanu , M. Chshiev , S. Amara , N. de Mestier , C. Baraduc , B. Dieny

A large spin-dependent and electric field-tunable magnetoresistance of a two-dimensional electron system (2DES) is a key ingredient for the realization of many novel concepts for spin-based electronic devices. The low magnetoresistance…

Altermagnets, a newly discovered class of magnets, integrate the advantages of both ferromagnets and antiferromagnets, such as enabling anomalous transport without stray fields and supporting ultrafast spin dynamics, offering exciting…

介观与纳米尺度物理 · 物理学 2026-01-05 Xian-Peng Zhang , Run-Wu Zhang , Xiaolong Fan , Wanxiang Feng , Xiangrong Wang , Yugui Yao

Quasiclassical boundary conditions for electrochemical potentials at the interface between diffusive ferromagnetic and non-magnetic metals are derived for the first time. An expression for the boundary resistance accurately accounts for the…

其他凝聚态物理 · 物理学 2009-11-11 B P Vodopyanov , L R Tagirov

We have studied anisotropic magnetoresistance (MR) and magnetization with rotating magnetic field (B) within $CuO_2$ plane in lightly doped AF $Nd_{2-x}Ce_xCuO_{4}$. \emph{A giant anisotropy} in MR is observed at low temperature below 5 K.…

超导电性 · 物理学 2009-11-13 T. Wu , C. H. Wang , G. Wu , D. F. Fang , J. L. Luo , G T. Liu , X. H. Chen

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…

介观与纳米尺度物理 · 物理学 2010-03-03 Takehito Yokoyama , Yukio Tanaka , Naoto Nagaosa

We theoretically investigate the transfer of angular momentum between a spin superfluid and a domain wall in an exchange coupled easy-axis and easy-plane magnetic insulator system. A domain wall in the easy-axis magnet absorbs spin angular…

介观与纳米尺度物理 · 物理学 2017-03-08 Pramey Upadhyaya , Se Kwon Kim , Yaroslav Tserkovnyak

Room temperature local magnetoresistance in two-terminal scheme is reported. By employing 1.6 nm-thick MgO tunnel barrier, spin injection efficiency is increased, resulting in large non-local magnetoresistance. The magnitude of the…

Processes which flip the spin of an electron tunneling in a junction made up of magnetic electrodes are studied. It is found that: i) Magnetic impurities give a contribution which increases the resistance and lowers the magnetoresistance,…

介观与纳米尺度物理 · 物理学 2009-10-30 F. Guinea

Because of spin-orbit interaction, an electrical current is accompanied by a spin current resulting in spin accumulation near the sample edges. Due again to spin-orbit interaction this causes a small decrease of the sample resistance. An…

介观与纳米尺度物理 · 物理学 2009-11-13 M. I. Dyakonov

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…

介观与纳米尺度物理 · 物理学 2009-10-31 R. P. van Gorkom , Arne Brataas , Gerrit E. W. Bauer

Superfluid vortices are quantum excitations carrying quantized amount of orbital angular momentum in a phase where global symmetry is spontaneously broken. We address a question of whether magnetic vortices in superconductors with dynamical…

高能物理 - 理论 · 物理学 2021-07-07 Kenji Fukushima , Yoshimasa Hidaka , Ho-Ung Yee

We present a theory of the spin Hall magnetoresistance of metals in contact with magnetic insulators. We express the spin-mixing conductances, which govern the phenomenology of the effect, in terms of the microscopic parameters of the…

介观与纳米尺度物理 · 物理学 2019-10-02 X. P. Zhang , F. S. Bergeret , V. N. Golovach

The ferrimagnetic insulator Mn3Si2Te6, which features a Curie temperature Tc at 78 K and a delicate yet consequential magnetic frustration, exhibits colossal magnetoresistance (CMR) when the magnetic field is applied along the magnetic hard…

强关联电子 · 物理学 2022-11-02 Feng Ye , Masaaki Matsuda , Zachary Morgan , Todd Sherline , Yifei Ni , Hengdi Zhao , G. Cao

Using micromagnetics we demonstrate that the r.f. field produced by a spin valve can be used to reverse the magnetization in a magnetic nanoparticle. The r.f. field is generated using a current that specifically excites a uniform spin wave…

材料科学 · 物理学 2009-11-13 K. Rivkin , J. Ketterson , W. Saslow

We have studied the dependence of the superconducting (SC) transition temperature on the mutual orientation of magnetizations of Fe1 and Fe2 layers in the spin valve system CoO_x/Fe1/Cu/Fe2/Pb. We find that this dependence is nonmonotonic…

Current-perpendicular-to-plane magnetoresistance (CPP-MR) measurements let us quantify conduction electron scattering and spin-flipping at a sputtered ferromagnetic/ferromagnetic (F1/F2 = Co/Ni) interface, with important consequences for…

材料科学 · 物理学 2015-05-20 H. Y. T. Nguyen , R. Acharyya , E. Huey , B. Richard , R. Loloee , W. P. Pratt , J. Bass , Shuai Wang , Ke Xia

The giant magnetoresistance (GMR) of ferromagnetic bilayers with a superconducting contact (F1/F2/S) is calculated in ballistic and diffusive regimes. As in spin-valve, it is assumed that the magnetization in the two ferromagnetic layers F1…

材料科学 · 物理学 2009-10-31 N. Ryzhanova , C. Lacroix , A. Vedyayev , D. Bagrets , B. Dieny

Spin wave theory is applied to a quantum antiferromagnetic XXZ model on a triangle lattice in the presence of an in-plane magnetic field. The effect of the field is found to enhance the quantum fluctuation and to reduce the sublattice…

强关联电子 · 物理学 2009-11-07 J. Y. Gan , F. C. Zhang , Z. B. Su

We investigate theoretically the influence of the spin-orbit interaction of Rashba type on the magnetoresistance of a semiconducting ferromagnetic nanostructure with a laterally constrained domain wall. The domain wall is assumed sharp (on…

材料科学 · 物理学 2009-11-10 V. K. Dugaev , J. Barnas , J. Berakdar , V. I. Ivanov , W. Dobrowolski , V. F. Mitin