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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…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 F. Taddei , S. Sanvito , J. H. Jefferson , C. J. Lambert

Giant magnetoresistance (GMR) is a quantum mechanical magnetoresistance effect observed in thin film structures composed of alternating ferromagnetic and nonmagnetic layers. The effect manifests itself as a significant decrease (typically…

Materials Science · Physics 2014-12-25 Liu Chang , Min Wang , Lei Liu , Siwei Luo , Pan Xiao

Ag/Fe/Ag and Cr/Fe/Cr trilayers with a single $25 nm$ thick ferromagnetic layer exhibit giant magnetoresistance (GMR) type behavior. The resistance decreases for parallel and transversal magnetic field alignements with a Langevin-type…

Materials Science · Physics 2016-08-15 J. Balogh , L. F. Kiss , A. Halbritter , I. Kézsmárki , G. Mihály

Strong magnetoresistance effects are often observed in ferromagnet-nonmagnet multilayers, which are exploited in state-of-the-art magnetic field sensing and data storage technologies. In this work we report a novel…

Mesoscale and Nanoscale Physics · Physics 2014-05-22 S. C. Bodepudi , A. P. Singh , Sandipan Pramanik

We report on the giant magnetoresistance (GMR) of multiwall carbon nanotubes with ultra small diameters. In particular, we consider the effect of the inter-wall interactions and the lead/nanotube coupling. Comparative studies have been…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 S. Krompiewski , R. Gutierrez , G. Cuniberti

We report a detailed study of surface and interface properties of pulsed-laser deposited NiMnSb films on Si (100) substrate as a function of film thickness. As the thickness of films is reduced below 35 nm formation of a porous layer is…

We report on giant positive magnetoresistance effect observed in VOx thin films, epitaxially grown on SrTiO3 substrate. The MR effect depends strongly on temperature and oxygen content and is anisotropic. At low temperatures its magnitude…

Strongly Correlated Electrons · Physics 2009-11-10 A. D. Rata , V. Kataev , D. Khomskii , T. Hibma

We have observed a superparamagnetic to ferromagnetic transition in films of isolated Ni grains covered by non-magnetic overlayers. The magnetoresistance (MR) of the films was measured as a function of the overlayer thickness. Initially,…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. Frydman , R. C. Dynes

Spin Hall magnetoresistance (SMR) refers to a resistance change in a metallic film reflecting the magnetization direction of a magnet attached to the film. The mechanism of this phenomenon is spin exchange between conduction-electron spins…

Giant magnetoresistance (GMR) material has great potential as next generation magnetic field sensing devices, have magnetic properties and high electrical potential to be developed into various applications such as: magnetic field sensor…

Mesoscale and Nanoscale Physics · Physics 2012-02-02 Mitra Djamal , Ramli , Sparisoma Viridi , Khairurrijal

Colossal magnetoresistive (CMR) La$_{0.7}$Sr$_{0.3}$MnO$_{3}$ (LSMO) thin films have been grown under tensile strains on (100)-SrTiO$_{3}$ substrates and compressive strains on (100)-LaAlO$_{3}$ and (110)-NdGaO$_{3}$ substrates by pulsed…

Materials Science · Physics 2016-08-31 R. Desfeux , S. Bailleul , A. Da Costa , W. Prellier , A. M. Haghiri-Gosnet

MBE-grown, 5 nm-thick annealed Ga0.95Mn0.05As films with Tc~90K demonstrate transition from metallic to insulating state below To~10K, where sheet resistances Rsh~h/e2 and both longitudinal Rxx and transverse Rxy components become…

Materials Science · Physics 2008-06-17 R. R. Gareev , A. Petukhov , M. Schlapps , M. Doeppe , J. Sadowski , M. Sperl , W. Wegscheider

The magnetoresistance (MR) of 10 nm to 200 nm thin polycrystalline Co-films, deposited on glass and insulating Si(100), is studied in fields up to 120 kOe, aligned along the three principal directions with respect to the current:…

Other Condensed Matter · Physics 2009-11-11 Woosik Gil , Detlef Goerlitz , Michael Horisberger , Juergen Koetzler

Thin films of Nd$_{0.5}$Ca$_{0.5}$MnO$_{3}$ manganites with colossal magnetoresistance (CMR) properties have been synthesized by the Pulsed Laser Deposition technique on (100)-SrTiO$_{3}$. The lattice parameters of these manganites and…

Materials Science · Physics 2009-11-07 E. Rauwel-Buzin , W. Prellier , Ch. Simon , S. Mercone , B. Mercey , B. Raveau , J. Sebek , J. Hejtmanek

Through a thorough magneto-transport study of antiferromagnetic topological insulator MnBi2Te4 (MBT) thick films, a positive linear magnetoresistance (LMR) with a two-dimensional (2D) character is found in high perpendicular magnetic fields…

Materials Science · Physics 2021-01-04 X. Lei , L. Zhou , Z. Y. Hao , X. Z. Ma , C. Ma , Y. Q. Wang , P. B. Chen , B. C. Ye , L. Wang , F. Ye , J. N. Wang , J. W. Mei , H. T. He

GeMn granular thin films are a unique and promising material for spintronics applications due to large positive magnetoresistance (MR). Previous studies on GeMn have suggested that the large MR is related to nanospinodal decomposition of…

The magnetoresistance of InSb has been intensively investigated. The experiments we perform here focus on weak field magnetoresistance of InSb thin film. We investigate the magnetoresistance of InSb films in perpendicular, tilted as well as…

Materials Science · Physics 2010-05-26 R. Yang , G. L. Yu , Yanhui Zhang , P. P. Chen

The semiconducting half-Heulser compound DyNiBi shows a negative giant magnetoresistance (GMR) below 200 K. Except for a weak deviation, this magnetoresistance scales roughly with the square of the magnetization in the paramagnetic state,…

Materials Science · Physics 2015-05-13 Frederick Casper , Claudia Felser

We present a comparative study on the influence of applied magnetic field on the resistance of $C_{1-x}Co_x$ thin films (with $x=0.1$, $0.15$ and $0.2$) grown on $Si$ substrate by pulsed laser deposition technique. It is found that the…

Materials Science · Physics 2018-03-07 S. Sergeenkov , C. Cordova , L. Cichetto , O. F. de Lima , E. Longo , F. M. Araujo-Moreira , C. Furtado

In this study, we report the epitaxial growth of a series of {\alpha}-Sn films on InSb substrate by molecular beam epitaxy (MBE) with thickness varying from 10 nm to 400 nm. High qualities of the {\alpha}-Sn films are confirmed. An enhanced…

Materials Science · Physics 2020-09-29 Yuanfeng Ding , Huanhuan Song , Junwei Huang , Jinshan Yao , Yu Gu , Lian Wei , Yu Deng , Hongtao Yuan , Hong Lu , Yan-Feng Chen
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