Journal ArticleDOI
Residual resistivity of concentrated ferromagnetic disordered alloys
TLDR
In this article, a theory of the residual electrical resistance of disordered alloys is presented in the framework of the coherent-potential approximation, which can be applied to calculate the concentration dependence of magnetization, spin-up and spin-down resistivities, and spontaneous resistivity anisotropy of ferromagnetic alloys.Abstract:
A theory of the residual electrical resistance of ferromagnetic disordered alloys is presented in the framework of the coherent-potential approximation. It generalizes a previous calculation made for a two-band model Hamiltonian relevant for transition-metal-based alloys. This formalism can be applied to calculate the concentration dependence of magnetization, spin-up and spin-down resistivities, and spontaneous resistivity anisotropy of ferromagnetic alloys. These quantities are computed for a simple model of NiCu and are found to be in good agreement with observation.read more
Citations
More filters
Journal ArticleDOI
The theory and properties of randomly disordered crystals and related physical systems
TL;DR: A review of the methods for determining the behavior of solids whose properties vary randomly at the microscopic level, with principal attention to systems having composition variation on a well-defined structure (random "alloys") can be found in this paper.
Journal ArticleDOI
Temperature-induced crossover between 0 and π states in S/F/S junctions
TL;DR: In this paper, a modified spectrum of Andreev bound states shifted by the exchange energy was used to explain the supercurrent in Ferromagnetic Josephson junctions, and a simplified expression for the spectral supercurrent density was calculated and the nonmonotonic temperature dependence of the critical current was discussed.
Journal ArticleDOI
High quality ferromagnetic 0 and π Josephson tunnel junctions
Martin Weides,M. Kemmler,Edward Goldobin,Dieter Koelle,Reinhold Kleiner,Hermann Kohlstedt,Alexandre I. Buzdin +6 more
TL;DR: In this paper, the authors fabricated high quality Nb∕Al2O3∕Ni0.6Cu0.4∕Nb superconductor-insulatorferromagnet-superconductor Josephson tunnel junctions.
Journal ArticleDOI
Spontaneous resistivity anisotropy in Ni alloys
TL;DR: In this paper, the authors present experimental results for the resistivity anisotropy of Ni alloys containing transition impurities and show that the Smit spin mixing mechanism is dominant in all cases where there is no d virtual bound state at the spin ↑ Fermi level.
Journal ArticleDOI
Quantum effects in the giant magnetoresistance of magnetic multilayered structures
TL;DR: In this article, an analytical quantum statistical theory of giant magnetoresistance in magnetic multilayers (current flowing in the plane of the layers) which takes into account both spindependent scattering of conduction electrons (s, d or hybridized sd electrons) and spin-dependent potential barriers between successive layers is presented.
Related Papers (5)
Single-Site Approximations in the Electronic Theory of Simple Binary Alloys
Theory of Electrical Conductivity in Disordered Binary Alloys. The Effect of s − d Hybridization
François Brouers,A. V. Vedyayev +1 more