For the first time, we successfully developed exchange anisotropy of PtMn/Ni80Fe20 (1 1 0) bilayers grown on a MgO(1 1 0) substrate with or without Pt buffer layer. The results of angular-dependent magneto-optical Kerr effect indicate that the PtMn/Ni80Fe20(1 1 0) films possess unidirectional anisotropy with coercivity and exchange field around 135Oe and 60Oe, respectively. The Pt buffer layer ...

Many boundary integral equations for exterior boundary value problems for the Helmholtz equation suffer from a notorious instability for wave numbers related to interior resonances. The so-called combined field integral equations are not affected. However, if the boundary is not smooth, the traditional combined field integral equations for the exterior Dirichlet problem do not give rise to an L...

FeCo nanoparticles (4 ± 1 nm), encapsulated by SiO2, were synthesized with and without a 2% (atomic ratio) vanadium doping. The impact from the presence of vanadium, an additive often used in the bulk to alter both physical and mechanical properties, on the nanomagnetism was probed by element-specific X-ray spectroscopy and magnetometry techniques. While the nanostructure was unaffected by the ...

We have studied the magnetic properties of spherical fcc clusters at zero temperature using a numerical solution of the Landau—Lifshitz equations of motion with damping. Of particular interest is the effect caused by anisotropy which is uniaxial, radial, and present only on the surface. The hysteresis curves are obtained for different values of the anisotropy strength and for different cluster ...

Magnetic nanorods or nanowires exhibit degrees of freedom associated with their inherent shape anisotropy and the ability to incorporate different components along their length. The introduction of multiple segments along the length of a nanowire can lead to further degrees of freedom associated with the shape of each segment and the coupling between layers. In this paper, we present an overvie...

We study the existence and the algorithmic aspect of a System of Generalized Mixed Equilibrium Problems involving variational-like inequalities SGMEPs in the setting of Banach spaces. The approach adopted is based on the auxiliary principle technique and arguments from generalized convexity. A new existence theorem for the auxiliary problem is established; this leads us to generate an algorithm...

Carbon nanomaterials in the form of paper sheets have been used as platforms to achieve multifunctionality. Combined with electrochemical deposition, room temperature synthesis of magnetic Ni coatings on individual carbon nanofibers (CNF) and/or carbon nanotubes (CNT) has been realized through solution penetration and ion diffusion. In addition to significant electrical conductivity improvement...

To clarify the effect of small magnetic fields on properties and microstructure in FeCoSiBPC amorphous alloys, a field with different directions various intensities was applied. The results show that static orthogonal could all decrease Hc. Small like 50 Oe are also effective reducing samples annealed without were compared to figure out A change crystallization growth between heat treated non-f...