This paper reviews the present understanding of the origin of ferromagnetic response that has been detected in a number of diluted magnetic semiconductors (DMS) and diluted magnetic oxides (DMO) as well as in some nominally magnetically undoped materials. It is argued that these systems can be grouped into four classes. To the first belong composite materials in which precipitations of a known ...

Bulk layered transition metal dichalcogenides (TMDs) show diamagnetic properties. When exfoliated, the materials' band gap increases and changes from an indirect band gap to a direct one. During the exfoliation, the TMDs may undergo a phase transition from 2H to 1T polymorph, which is likely electronically driven and accompanied by a metal-insulator transition. A significantly higher efficiency...

Nanostructured magnetic materials are important for many advanced applications. Consequently, new methods for their fabrication are critical. However, coupling self-assembly to the generation of magnetic materials in a simple, straight-forward manner has remained elusive. Although several approaches have been considered, most have multiple processing steps, thus diminishing their use of self-as...

Linearized equations and boundary conditions of a magnetoelastic ferromagnetic body are obtained with the nonlinear law of magnetization. Magnetoelastic interactions in a multidomain ferromagnetic materials are considered for magneto soft materials, i.e. the case when the magnetic field intensity vector and magnetization vector are parallel. As a special case, the following two problems are con...

Much of the interest in nanostructured materials originates from the challenge to find materials with properties that are substantially different from those of the same materials on a larger scale. New dielectric, [1] ferromagnetic, [2] catalytic, [3] and other properties are indeed being realized. Of particular interest are nanoparticles that exist in new structures, metastable structures, or ...

There has been considerable interest in spin-orbit torques for the purpose of manipulating the magnetization of ferromagnetic elements for spintronic technologies. Spin-orbit torques are derived from spin currents created from charge currents in materials with significant spin-orbit coupling that propagate into an adjacent ferromagnetic material. A key challenge is to identify materials that ex...

The present paper establishes characteristics of the relative magnetic permeability spectrum μ(f) of magnetic materials at microwave frequencies. The integral ∫ ∞ 0 . ). ( ' ' df f f μ of the imaginary part of μ(f) multiplied with the frequency f gives remarkable properties. A generalisation of Snoek’s law consists in this quantity being bounded by the square of the saturation magnetization mul...

We use symmetry considerations in order to predict new magnetoelectric fluorides. In addition to these magnetoelectric properties, we discuss which among these fluorides are the ones susceptible to present multiferroic properties. We emphasize that several materials exhibit ferromagnetic properties. This ferromagnetism should enhance the interplay between the magnetic and dielectric properties ...

We present results on Barkhausen noise power spectrum in polycrystalli.ne 3 % SiFe, measured in the central part of the hysteresis loop as a function of permeability /I and magnetization rate I , in the range 2.6 x lo3 5 p / po 5 5.5 x lo4, 1.5 x ~o-~Ts ' 5 I 5 5 TS-'. The parameters describing the spectrum shape exhibit definite power law dependences on both /I and I .