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相关论文: Breakdown of the resistor model of CPP-GMR in magn…

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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 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

By an accurate Green's function method we calculate conductances and the corresponding Giant Magneto-Resistance effects (GMR) of two metallic ferromagnetic films separated by different spacers, metallic and non-metallic ones, in a…

介观与纳米尺度物理 · 物理学 2009-10-31 O. Gebele , M. Böhm , U. Krey , S. Krompiewski

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

We have carried out measurements of the magnetoresistance MR(H) in the CPP (Current Perpendicular to the Plane) mode for two types of magnetic multilayers which have different layer ordering. The series resistor model predicts that CPP…

凝聚态物理 · 物理学 2007-05-23 Didier Bozec , M. A. Howson , B. J. Hickey , Smadar Shatz , Nathan Wiser

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

We predict that current perpendicular to the plane (CPP) giant magnetoresistance (GMR) in a phase-coherent magnetic multilayer is suppressed when one of the contacts is superconducting. This is a consequence of a superconductivity-induced…

介观与纳米尺度物理 · 物理学 2007-05-23 F. Taddei , S. Sanvito , J. H. Jefferson , C. J. Lambert

It is shown that the current-perpendicular-to-plane giant magneto-resistance (CPP-GMR) oscillations, in the ballistic regime, are strongly correlated with those of the exchange coupling (J). Both the GMR and J are treated on equal footing…

介观与纳米尺度物理 · 物理学 2008-02-03 S. Krompiewski , M. Zwierzycki , U. Krey

The interlayer magnetoresistance of layered metals in a tilted magnetic field is calculated for two distinct models for the interlayer transport. The first model involves coherent interlayer transport and makes use of results of…

强关联电子 · 物理学 2009-10-31 Perez Moses , Ross H. McKenzie

We measure the giant magnetoresistance (GMR) with the current both parallel and perpendicular to the direction of the magnetization in the ferromagnetic (FM) layers and thus probe the anisotropy of the effective mean free paths for the…

凝聚态物理 · 物理学 2009-10-31 B. H. Miller , Branko P. Stojkovi'c , E. D. Dahlberg

Spin-dependent coherent quantum transport through carbon nanotubes (CNT) is studied theoretically within a tight-binding model and the Green's function partitioning technique. End-contacted metal/nanotube/metal systems are modelled and next…

介观与纳米尺度物理 · 物理学 2009-11-11 S. Krompiewski

This study investigates the giant magneto-thermal resistance (GMTR) effect in a fully-bcc epitaxial Co50Fe50/Cu multilayer through both experimental and theoretical approaches. The applied magnetic field results in a giant change of the…

The evolution of electronic structure of graphene nanoribbons (GNRs) as a function of the number of layers stacked together is investigated using \textit{ab initio} density functional theory (DFT) including interlayer van der Waals…

材料科学 · 物理学 2011-10-28 Neerav Kharche , Yu Zhou , Kevin P. O'Brien , Swastik Kar , Saroj K. Nayak

A novel, general Green's function technique for elastic spin-dependent transport calculations is presented, which (i) scales linearly with system size and (ii) allows straightforward application to general tight-binding Hamiltonians (spd in…

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

We have studied the Giant Magnetoresistance (GMR) for laterally confined multilayers, e.g., layers of wires, using the classical Boltzmann equation in the current-in-plane (CIP) geometry. For spin-independent specularity factors at the…

凝聚态物理 · 物理学 2007-05-23 Kingshuk Majumdar , Jian Chen , Selman Hershfield

Employment of the non-trivial proximity effect in Superconductor/Ferromagnet (S/F) heterostructures for creation of novel superconducting devices requires an accurate control of magnetic states in complex thin-film multilayers composing…

Magnetic semiconductors are a powerful platform for understanding, utilizing and tuning the interplay between magnetic order and electronic transport. Compared to bulk crystals, two-dimensional magnetic semiconductors have greater…

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 have studied the magnetotransport of conical and disk-shaped nanocarbon particles in magnetic fields $\left|B\right|\leq9\:\mathrm{T}$ at temperatures $2\leq T\leq300\:\mathrm{K}$ to characterize electron scattering in a three…

介观与纳米尺度物理 · 物理学 2014-07-28 Jozef Černák , Geir Helgesen , Fredrik Sydow Hage , Jozef Kováč

Magnetoresistance measurements in the CPP geometry have been performed on single electrodeposited Co nanowires exchange biased on one side by a sputtered amorphous GdCo layer. This geometry allows the stabilization of a single domain wall…

材料科学 · 物理学 2009-10-31 J. -E. Wegrowe , A. Comment , Y. Jaccard , J. -Ph. Ansermet , N. M. Dempsey , J-P. Nozieres
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