Results 201 to 210 of about 25,124 (221)

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.
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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 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.
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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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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
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Linear Magnetoresistance and Anisotropic Quantum Fluctuations

Physical Review Letters, 1972
We propose a theory which accounts for the linear magnetoresistance found in the transverse and longitudinal components in various metals. The theory is based on the existence of quasiperiodic static fluctuations, which have the anisotropy of the lattice and may be due to electron-phonon and/or electron-electron interactions.
L. M. Falicov, Henrik Smith
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Linear Magnetoresistance in Parabolic Semiconductors

physica status solidi (b), 1975
AbstractA density matrix approach is described to calculate the complete ohmic magnetoresist‐ivity tensor for a non‐degenerate and non‐polar semiconductor with isotropic effective mass. The conventional methods using the Boltzmann transport equation cannot be used in a satisfactory way with magnetic fields of arbitrary strength.
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A linear self-biased magnetoresistive head

IEEE Transactions on Magnetics, 1975
Evaluation of the distortion resulting from imperfect biasing of a magnetoresistive (MR) read head shows that it is unacceptable in wide band recording systems. A general solution to the problem is presented which involves differentially sensed elements. A practical implementation and performance of a shielded head is discussed.
F. Shelledy, G. Brock
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Magnetism and linear field magnetoresistivity in UPt3

Physica B: Condensed Matter, 1990
Abstract The temperature dependence of the transverse magnetoresistivity (upto 7.6 tesla) for heavy fermion UPt3 has been studied The linear term in the field dependence of resistivity is found to decrease with increasing temperature and vanishes for T> 6 K.
K. Behnia, O. Laborde, L. Taillefe, J. Flouquet   +3 more
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