Results 201 to 210 of about 3,968 (226)

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

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

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

Linear Magnetoresistance in the Quantum Limit in Graphite

Physical Review, 1968
Measurements of the galvanomagnetic properties of single-crystal graphite were made at 4.2\ifmmode^\circ\else\textdegree\fi{}K in pulsed magnetic fields up to 160 kG. With the magnetic field parallel to the $c$ axis, the transverse magnetoresistance is approximately proportional to the magnetic field strength, and the Hall coefficient is constant above
J. W. McClure, W. J. Spry
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
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
openaire   +1 more source

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

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.
openaire   +1 more source

Linear Positive Magnetoresistance and Quantum Interference in Ferromagnetic Metals

Physical Review Letters, 2007
Positive, linear in field, and isotropic magnetoresistance in fields up to 60 T is found in geometrically constrained ferromagnets, such as thin films of iron, nickel, and cobalt and their granular mixtures with nonmagnetic materials. The resistivity measured as a function of temperature shows a minimum at temperatures reaching a remarkably high 92 K ...
Gerber, A., Kishon, I., Korenblit, I.Ya., Riss, O., Segal, A., Karpovski, M., Raquet, Bertrand   +6 more
openaire   +3 more sources

Scaling of Berry-curvature monopole dominated large linear positive magnetoresistance

Proceedings of the National Academy of Sciences of the United States of America, 2022
Chuanying Xi, Min Zhou, Stuart S P Parkin   +2 more
exaly