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相关论文: Controlled spin-to-charge conversion in noncolline…

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We investigate how spatiotemporal spin polarized current can lead to terahertz frequency excitations in non-collinear antiferromagnets. By solving the Landau-Lifshitz-Gilbert equation numerically for non-collinear antiferromagnet, we show…

介观与纳米尺度物理 · 物理学 2025-01-03 Durga Prasad Goli , Se Kwon Kim

Antiferromagnetic materials are of great interest for spintronics. Here we present a comprehensive study of the growth, structural characterization, and resulting magnetic properties of thin films of the non-collinear antiferromagnet…

The use of graphene in spintronic devices is contingent on its ability to convert a spin current into a charge current. We have systematically investigated the spin pumping induced spin-to-charge current conversion at the Graphene/FM…

介观与纳米尺度物理 · 物理学 2024-05-28 Mahammad Tahir , Subhakanta Das , Mukul Gupta , Rohit Medwal , Soumik Mukhopadhyay

We present a theoretical investigation of epitaxial strain effects on the magnetic fluctuation properties of Mn$_3$Sn noncollinear antiferromagnets. Employing density functional theory (DFT), we uncover significant strain-induced…

材料科学 · 物理学 2025-07-31 Mohammad M. Rahman , Farzad Mahfouzi , Matthew W. Daniels , Mark D. Stiles

To study spin flipping within the antiferromagnet IrMn, we extended prior Current-Perpendicular-to-Plane (CPP) Giant Magnetoresistance (GMR) studies of Py-based exchange-biased-spin-valves containing IrMn inserts to thicker IrMn layers-5 nm…

材料科学 · 物理学 2015-05-20 R. Acharyya , H. Y. T. Nguyen , W. P. Pratt , J. Bass

We demonstrate a strong tunability of the spin-pumping contribution to magnetic damping in a thin-film ferromagnetic free layer interfaced with a synthetic ferrimagnet (SFM), acting as a spin-sink, via a thin Cu-spacer. The effect strongly…

Monte Carlo simulations have been used to study magnetic ordering in coupled anisotropic ferro/antiferromagnetic (FM/AFM) films of classical Heisenberg spins. We consider films with flat interfaces that are fully uncompensated as well as…

统计力学 · 物理学 2009-11-10 Shan-Ho Tsai , D. P. Landau , Thomas C. Schulthess

SrIrO$_3$ with its large spin-orbit coupling and low charge conductivity has emerged as a potential candidate for efficient spin-orbit torque magnetization control in spintronic devices. We here report on the influence of an interfacial…

We report the emergence of highly nonlinear spin and charge pumping in an altermagnetic system driven by magnetic dynamics. The non-relativistic spin-momentum coupling inherent to altermagnets (AMs) generates a giant momentum dependent spin…

介观与纳米尺度物理 · 物理学 2026-04-21 Ousmane Ly

The charge-to-spin conversion provides an efficient way to manipulate the magnetization by electrical means. In this work, we report on a study on the anisotropic nonrelativistic charge-to-spin conversion response to the current direction…

其他凝聚态物理 · 物理学 2025-12-10 Mingbo Dou , Xianjie Wang , L. L. Tao

Ferromagnetic (FM) layers separated by nonmagnetic metallic spacer layers can exhibit Ruderman Kittel Kasuya Yosida (RKKY) coupling which may lead to a stable synthetic antiferromagnetic (SAF) phase. In this article we study magnetization…

We report experiments that control magnetic damping in Py/Fe3O4-PANI via two spintronic thermal effects: spin Seebeck and anomalous Nernst. Magnetic damping is measured using ferromagnetic resonance (FMR) techniques, where the sample is…

材料科学 · 物理学 2025-03-27 José Laurentino , Carlos Eduardo , Luiza Paffer , José Araújo , José Holanda

We report studies of exchange bias and coercivity in ferromagnetic Ni$_{81}$Fe$_{19}$ layers coupled to antiferromagnetic (AF) (0001), (11$\bar{2}$0), and (11$\bar{0}$2) $\alpha$-Fe$_2$O$_3$ layers. We show that AF spin configurations which…

强关联电子 · 物理学 2009-11-10 Joonghoe Dho , C. W. Leung , Z. H. Barber , M. G. Blamire

We measure electrically detected ferromagnetic resonance in microdevices patterned from ultra-thin Co/Pt bilayers. Spin pumping and rectification voltages are observed and distinguished via their angular dependence. The spin-pumping voltage…

介观与纳米尺度物理 · 物理学 2013-04-22 T. D. Skinner , H. Kurebayashi , D. Fang , D. Heiss , A. C. Irvine , A. T. Hindmarch , M. Wang , A. W. Rushforth , A. J. Ferguson

We report the growth of MgO[001]//Fe(6 nm)/MgO(7 nm) and MgO[001]//Fe(6 nm)/Pt(6 nm) by molecular beam epitaxy and show that the full characterization by spin-orbit ferromagnetic resonance (SO-FMR) allows the determination of magnetic…

材料科学 · 物理学 2019-01-30 C. Guillemard , S. Petit-Watelot , S. Andrieu , J. -C. Rojas-Sánchez

We investigated the magnetic structure and dynamics of YbMnBi$_2$, with elastic and inelastic neutron scattering, to shed light on the topological nature of the charge carriers in the antiferromagnetic phase. We confirm C-type…

We investigate spin-rectification phenomena in canted antiferromagnets, closely connected to the family of altermagnetic materials. Our results show that excitation efficiency is significantly enhanced by the Dzyaloshinskii-Moriya…

介观与纳米尺度物理 · 物理学 2024-10-11 A. El Kanj , S. Mantion , I. Boventer , P. Bortolotti , V. Cros , A. Anane , O. Gomonay , R. Lebrun

The ferromagnetic resonance of thin sputtered Ni80Fe20 films grown on Nb is measured. By varying the temperature and thickness of the Nb the role of the superconductivity on the whole ferromagnetic layer in these heterostructures is…

超导电性 · 物理学 2009-11-13 C. Bell , S. Milikisyants , M. Huber , J. Aarts

We study the magnetic damping in the simplest of synthetic antiferromagnets, i.e. antiferromagnetically exchange-coupled spin valves in which applied magnetic fields tune the magnetic configuration to become noncollinear. We formulate the…

介观与纳米尺度物理 · 物理学 2015-08-07 Takahiro Chiba , Gerrit E. W. Bauer , Saburo Takahashi

The conversion of spin information into electrical signals is indispensable for spintronic technologies. Spin-to-charge conversion in ferromagnetic tunnel contacts is well-described using linear (spin-)transport equations, provided that…

介观与纳米尺度物理 · 物理学 2018-10-29 R. Jansen , A. Spiesser , H. Saito , Y. Fujita , S. Yamada , K. Hamaya , S. Yuasa