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Related papers: Perpendicular-current Studies of Electron Transpor…

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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…

Materials Science · Physics 2015-05-20 H. Y. T. Nguyen , R. Acharyya , E. Huey , B. Richard , R. Loloee , W. P. Pratt , J. Bass , Shuai Wang , Ke Xia

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…

Materials Science · Physics 2013-05-17 Jack Bass

From measurements of the current-perpendicular-to-plane (CPP) total specific resistance (AR = area times resistance) of sputtered Pd/Ir multilayers, we derive the interface specific resistance, 2AR(Pd/Ir) = 1.02 +/- 0.06 fOhmm^2, for this…

Materials Science · Physics 2009-11-13 R. Acharyya , H. Y. T. Nguyen , R. Loloee , W. P. Pratt , J. Bass , Shuai Wang , Ke Xia

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…

Materials Science · Physics 2016-03-29 Jack Bass

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…

Materials Science · Physics 2015-05-14 B. Dassonneville , R. Acharyya , H. Y. T. Nguyen , R. Loloee , W. P. Pratt , J. 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…

Condensed Matter · Physics 2007-05-23 Didier Bozec , M. A. Howson , B. J. Hickey , Smadar Shatz , Nathan Wiser

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…

Materials Science · Physics 2009-11-10 K. Eid , H. Kurt , W. P. Pratt , J. Bass

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…

Mesoscale and Nanoscale Physics · Physics 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…

Materials Science · Physics 2009-11-10 A. Vedyayev , I. Zhukov , B. Dieny

We report on measurements of the electrical conductivity in both a 2D triangular lattice of metallic beads and in a chain of beads. The voltage/current characteristics are qualitatively similar in both experiments. At low applied current,…

Other Condensed Matter · Physics 2007-10-16 Mathieu Creyssels , Stéphane Dorbolo , Alexandre Merlen , Claude Laroche , Bernard Castaing , Eric Falcon

We address the problem of transmission of electrons between two noninteracting leads through a region where they interact (quantum dot). We use a model of spinless electrons hopping on a one-dimensional lattice and with an interaction on a…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Abhishek Dhar , Diptiman Sen , Dibyendu Roy

The resistance of multilayers with interface roughness on a length scale which is large compared to the atomic spacing is computed in several cases via the Boltzmann equation. This type of roughness is common in magnetic multilayers. When…

Materials Science · Physics 2010-01-12 Jason Alicea , Selman Hershfield

We compare specific resistances (AR equals area A times resistance R) of sputtered Pd/Pt interfaces measured in two different ways with no-free-parameter calculations. One way gives 2AR(Pd/Pt) of 0.29 (0.03) fohm-m(2) and the other 0.17…

Materials Science · Physics 2009-11-11 S. K. Olson , R. Loloee , N. Theodoropoulou , W. P. Pratt , J. Bass

We investigate a one-dimensional electron liquid with two point scatterers of different strength. In the presence of electron interactions, the nonlinear conductance is shown to depend on the current direction. The resulting asymmetry of…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 D. E. Feldman , S. Scheidl , V. M. Vinokur

The discovery of the metal-insulator transition (MIT) in two-dimensional (2D) electron systems challenged the veracity of one of the most influential conjectures in the physics of disordered electrons, which states that `in two dimensions,…

Strongly Correlated Electrons · Physics 2017-12-06 S. Anissimova , S. V. Kravchenko , A. Punnoose , A. M. Finkel'stein , T. M. Klapwijk

Magnetic and transport properties are explored in the current perpendicular-to-plane (CPP) spin salves with Cr doped wide band gap semiconductor ZnTe as one of the ferromagnetic electrodes. A negative magnetoresistance is observed in these…

Mesoscale and Nanoscale Physics · Physics 2022-11-14 W. G. Wang , C. Ni , L. R. Shah , X. M. Kou , J. Q. Xiao

Understanding the mechanism and symmetry of electron pairing in iron-based superconductors represents an important challenge in condensed matter physics [1-3]. The observation of magnetic flux lines - "vortices" - in a superconductor can…

Electron transport in graphene is along the sheet but junction devices are often made by stacking different sheets together in a "side-contact" geometry which causes the current to flow perpendicular to the sheets within the device. Such…

Computational Physics · Physics 2015-04-08 Xiang-Guo Li , Iek-Heng Chu , X. -G. Zhang , Hai-Ping Cheng

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…

Materials Science · Physics 2021-10-07 Xinlu Li , Yurong Su , Meng Zhu , Fanxing Zheng , Peina Zhang , Jia Zhang , Jing-Tao Lü

We study transport through two Luttinger liquids (one-dimensional electrons interacting through a Coulomb repulsion in a metal) coupled together at {\it two} points. External voltage biases are incorporated through boundary conditions. We…

Strongly Correlated Electrons · Physics 2009-10-31 P. Durganandini , Sumathi Rao
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