Results 201 to 210 of about 25,134 (237)

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

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.
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +2 more sources

Linear magnetoresistance at high magnetic field

Journal of Physics F: Metal Physics, 1983
A theory is presented for the linear increase in resistivity, in simple metals, with large magnetic field. In calculating the relaxation time the author shows that the magnetic field introduces symmetry breaking between the out- and backscattering of the electrons by impurities and phonons.
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Positive and negative linear magnetoresistance of graphite

Physics Letters A, 2004
The magnetoresistance (MR) of bulk graphite with different particle sizes is investigated. The MR of the graphite decreases with the particle size decreases. The graphite with micro-sized particles has a positive MR and exhibits positive linear field dependence of MR at about 50 K, whereas the graphite with particle size of 30.2 nm has a negative MR ...
X. Zhang, Q.Z. Xue, D.D. Zhu
openaire   +1 more source

Large linear magnetoresistance in a bismuth nanoribbon

Applied Physics Letters, 2017
We report the observation of large linear magnetoresistance (LMR) in an individual bismuth single crystal nanoribbon synthesized by solvothermal method. The LMR reaches 450% at 2 K and 550% at ∼125 K, and remains as high as 200% at room temperature without any sign of saturation under magnetic field up to 16 T.
Wei Ning, Fengyu Kong, Jin Hu, Yuyan Han, Jiyong Yang, Haifeng Du, Yuheng Zhang, Mingliang Tian   +7 more
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The barber pole, a linear magnetoresistive head

IEEE Transactions on Magnetics, 1975
A short review of bias methods for the magnetoresistive head (MRH), all based on the rotation of the magnetization, is given, and the properties of the various methods are discussed. A novel bias method is proposed which avoids many disadvantages of the former since it is based on the rotation of the current with the aid of slanted conductors, covering
K. Kuijk, W. van Gestel, F. Gorter
openaire   +1 more source