Results 181 to 190 of about 25,244 (222)

Quantum Linear Magnetoresistance in Multilayer Epitaxial Graphene

Nano Letters, 2010
We report the first observation of linear magnetoresistance (LMR) in multilayer epitaxial graphene grown on SiC. We show that multilayer epitaxial graphene exhibits large LMR from 2.2 K up to room temperature and that it can be best explained by a purely quantum mechanical model. We attribute the observation of LMR to inhomogeneities in the epitaxially
Adam L, Friedman, Joseph L, Tedesco, Paul M, Campbell, James C, Culbertson, Edward, Aifer, F Keith, Perkins, Rachael L, Myers-Ward, Jennifer K, Hite, Charles R, Eddy, Glenn G, Jernigan, D Kurt, Gaskill   +10 more
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Classical and quantum routes to linear magnetoresistance

Nature Materials, 2008
The hallmark of materials science is the ability to tailor the microstructure of a given material to provide a desired response. Carbon mixed with iron provides the steel of buildings and bridges; impurities sprinkled in silicon single crystals form the raw materials of the electronics revolution; pinning centres in superconductors let them become ...
Hu, Jingshi, Rosenbaum, T. F.
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Linear magnetoresistance of aluminum

Journal of Low Temperature Physics, 1974
The transverse magnetoresistivity of pure single crystals of aluminum (RRR ∼22,000) has been studied at 4.2 K and in high magnetic fields using the hard helicon technique. The measured magnetoresistivity is separated into a saturating and a linearly increasing part, and the effect of deformation and quenching on the linear component is studied.
T. Amundsen, P. Jerstad
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Disorder-controlled linear magnetoresistance in monolayer graphene

Europhysics Letters, 2023
Abstract The nonsaturating linear magnetoresistance (MR) in graphene has been found for more than ten years, but its origin still lacks a quantitative study. Here, we report magneto-transport properties of monolayer graphene samples grown on silicon carbide.
K. H. Gao, W. J. Wang, T. Lin, Z. Q. Li
openaire   +1 more source

Magnetoresistive thick film sensor for linear displacements

Sensors and Actuators A: Physical, 1995
Abstract A new thick film material has been developed starting from Ni and Co powders in the ratio Ni:Co = 3:1. The thermal treatment (in N2, up to 950 °C) of the metal films deposited on glazed alumina enables the in situ formation of the NiCo alloy.
B. MORTEN, G. DE CICCO, M. . PRUDENZIATI, G. MIHAI, MASOERO, Aldo   +4 more
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Quantum linear magnetoresistance

Europhysics Letters (EPL), 2000
A description is presented of experimental results, old and new ones, in which a magnetoresistance was discovered, linear in magnetic field. It is explained that there are two theoretical possibilities for such a phenomenon. The first one happens in a polycrystalline metal in a classically large field; it was known since the late 1950s.
openaire   +1 more source

Linear magnetoresistance of potassium

Journal of Physics C: Solid State Physics, 1970
Measurements of the linear magnetoresistance effect in pure potassium were made using two independent methods. Four-terminal measurements on straight narrow samples showed transverse and longitudinal effects of the same magnitude. An induced torque method was then used on large good single crystals.
openaire   +1 more source

Linear field amplification for magnetoresistive sensors

Journal of Applied Physics, 2008
In this article, we describe the fabrication and characterization of a spin valve (SV) magnetoresistive (MR) sensor, located in the gap of two magnetically soft flux guides (FGs) that enhance the sensor magnetic field sensitivity, while keeping in the sensor a quasilinear Barkhausen-noise-free response.
I. G. Trindade, R. Fermento, J. B. Sousa, R. C. Chaves, S. Cardoso, P. P. Freitas   +5 more
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Search for linear magnetoresistance in aluminum

Solid State Communications, 1974
Abstract The induced torque from high-purity aluminum for magnetic field rotation in a (100) plane exhibits little high-field linear magnetoresistance except for a narrow angular region (±3°) around 〈100〉 directions. The dimensionless slope of the high-field magnetoresistance determined from the induced torque is up to 25 times smaller than that ...
R.J. Douglas, W.R. Datars
openaire   +1 more source