Papers by Keyword: Ferromagnetic Metals

Abstract: Literature data on the effective electrical injectors of electron spin for silicon spintronics and stages of the investigation of corresponding magnetic tunnel contacts are reviewed up to 2015 year and a consideration of the current state of the research is given. Different structures for the spin injection, materials and possible applications in silicon spintronics are considered and also possible future research directions are outlined.

Abstract: A simple low-temperature dynamic spin-fluctuation theory of ferromagnetic metals is developed. The theory is based on the functional integral formalism for the multiband Hubbard Hamiltonian and takes into account both single-site and nonlocal spin fluctuations. We show that our approach correctly reproduces the T^3/2 law at low temperatures. The calculated results of magnetic properties for Fe and Fe_0.65Ni_0.35 Invar demonstrate that the approach works on a much wider temperature interval than the spin-wave approximation.