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相关论文: Negative GMR Effect in current perpendicular-to-pl…

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We theoretically studied spin dependent electron transport perpendicular-to-plain (CPP) in magnetic laminated multilayered structures by using Kubo formalism. We took into account not only bulk scattering, but the interface resistance due…

材料科学 · 物理学 2009-11-10 A. Vedyayev , I. Zhukov , B. Dieny

Measurements of Giant Magnetoresistance (GMR) in ferromagnetic/non-magnetic (F/N) multilayers with Current flow Perpendicular to the layer Planes (CPP-geometry) can give better access to the fundamental physics underlying GMR than…

材料科学 · 物理学 2013-05-17 Jack Bass

The difference in the density of states for up- and down-spin electrons in a ferromagnet (F) results in spin-dependent scattering of electrons at a ferromagnet / nonmagnetic (F/N) interface. In a F/N/F spin-valve, this causes a…

超导电性 · 物理学 2022-01-07 B. Stoddart-Stones , X. Montiel , M. G. Blamire , J. W. A. Robinson

We present a comprehensive review of data and analysis of Giant (G) Magnetoresistance (MR) with Current-flow Perpendicular-to-layer-Planes (CPP-MR) of magnetic multilayers [F/N]n (n = number of repeats) with alternating nanoscale layers of…

材料科学 · 物理学 2016-03-29 Jack Bass

Spin-dependent transport in a full van der Waals (vdW) giant magnetoresistance (GMR) junctions with the structure of Fe3GeTe2/XTe2/Fe3GeTe2 (X = Pt, Pd) has been investigated by using first-principles calculations. The ballistic…

材料科学 · 物理学 2021-10-07 Xinlu Li , Yurong Su , Meng Zhu , Fanxing Zheng , Peina Zhang , Jia Zhang , Jing-Tao Lü

We report the current-perpendicular-to-plane giant magnetoresistance of a spin valve with Co2MnSi (CMS) Heusler alloy ferromagnetic electrodes. A multilayer stack of Cr/Ag/Cr/CMS/Cu/CMS/Fe25Co75/Ir28Mn72/Ru was deposited on a MgO (001)…

材料科学 · 物理学 2009-11-13 K. Kodama , T. Furubayashi , H. Sukegawa , T. M. Nakatani , K. Inomata , K. Hono

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

We show that some metals and alloys (X = Cu, Ag, FeMn, or Cu and Ag combined with each other), sputtered between ferromagnetic Co and superconducting Nb, produce no change in current-perpendicular-to-plane magnetoresistance (CPP-MR) in a…

材料科学 · 物理学 2009-11-10 K. Eid , H. Kurt , W. P. Pratt , J. Bass

We study spin-scattering asymmetry at the interface of two ferromagnets (FMs) based on a half-metallic Co$_{2}$Fe$_{0.4}$Mn$_{0.6}$Si (CFMS)/CoFe interface. First-principles ballistic transport calculations based on Landauer formula for…

材料科学 · 物理学 2021-10-13 Y. Fujita , Y. Miura , T. Sasaki , T. Nakatani , K. Hono , Y. Sakuraba

A study of transverse tail-to-tail magnetic domain walls (DW) in novel current perpendicular to the plane (CPP) spin valves (SV) of various dimensions is presented. For films with dimensions larger than the DW width, we find that DW motion…

材料科学 · 物理学 2007-05-23 A. Rebei O. Mryasov

In contrast to earlier studies performed on simple Co/Cu/Co sandwiches, we have investigated spin transfer effects in complex spin-valve pillars with a diameter of 130nm developed for current-perpendicular to the plane (CPP)…

其他凝聚态物理 · 物理学 2007-05-23 A. Deac , K. J. Lee , Y. Liu , O. Redon , M. Li , P. Wang , J. P. Nozieres , B. Dieny

We analyze the interplay between disorder and band structure in current perpendicular to the planes (CPP) giant magnetoresistance (GMR). We consider finite magnetic multilayers attached to pure crystalline leads, described by a…

介观与纳米尺度物理 · 物理学 2009-10-31 S. Sanvito , C. J. Lambert , J. H. Jefferson

We fabricated a current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) nanopillar with a 1-nm-thick FePt free layer having perpendicular anisotropy using the alternate monatomic layer deposition method. Nanopillars consisting of…

We use current-perpendicular-to-plane (CPP) exchange-biased spin-valves to directly measure spin diffusion lengths lsf for N = Cu(2.1 at.%Ge) and Ag(3.6 at.%Sn) alloys. We find lsf(Cu2%Ge)) = 117+10-6 nm and lsf(Ag4%Sn)= 39 +/- 3 nm. The…

材料科学 · 物理学 2009-11-13 Q. Fowler , B. Richard , A. Sharma , N. Theodoropoulou , R. Loloee , W. P. Pratt , J. Bass

We have developed a self-aligned, high-yield process to fabricate CPP (current perpendicular to the plane) magnetic sensors of sub 100 nm dimensions. A pinned synthetic antiferromagnet (SAF) is used as the reference layer which minimizes…

材料科学 · 物理学 2009-11-10 D. Lacour , J. A. Katine , N. Smith , M. J. Carey , J. R. Childress

Oscillations of magnetoresistance and thermo-electric power (TEP) vs. both nonmagnetic spacer as well as ferromagnetic slab thicknesses are studied in the current-perpendicular-to-plane (CPP) geometry, in terms of a single-band…

凝聚态物理 · 物理学 2007-05-23 S. Krompiewski , U. Krey

We develop a high-throughput method for measuring the composition dependence of magnetoresistance (MR) and spin-transfer-torque (STT) effects in current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) devices and report its…

材料科学 · 物理学 2024-06-12 Vineet Barwal , Hirofumi Suto , Tomohiro Taniguchi , Yuya Sakuraba

We describe a technique, using the current-perpendicular-to-plane (CPP) geometry, to measure the parameter delta(F/N), characterizing flipping of electron spins at a ferromagnetic/non-magnetic (F/N) metallic interface. The technique…

材料科学 · 物理学 2015-05-14 B. Dassonneville , R. Acharyya , H. Y. T. Nguyen , R. Loloee , W. P. Pratt , J. Bass

We experimentally investigate magnetoresistance of a single GeTe-Ni junction between the $\alpha$-GeTe topological semimetal and thick nickel film at room and liquid helium temperatures. For the magnetic field parallel to the junction…

介观与纳米尺度物理 · 物理学 2025-05-08 A. A. Avakyants , V. D. Esin , D. Yu. Kazmin , N. N. Orlova , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

We propose a possible experimental setup for nonreciprocal electron transport in a lateral spin valve due to noncoplanar distribution of magnetic moment (and field) in the system. Some metals (Al, Cu) and semiconductors (GaAs, InSb etc.)…

介观与纳米尺度物理 · 物理学 2019-11-28 D. A. Tatarskiy , E. A. Karashtin
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