We discuss the microwave energy losses in superconductors in the critical state. The field-induced variations of the surface resistance are determined, in the framework of the Coffey and Clem model, by taking into account the distribution of the vortex magnetic field inside the sample. It is...

We report experimental investigation by electron paramagnetic resonance (EPR) measurements of room temperature γ-ray irradiation effects in sol-gel Ge doped amorphous SiO<Subscript>2</Subscript>. We used materials with Ge content from 10 up to 10<Superscript>4</Superscript> part per million (ppm) mol obtained with different preparations....</superscript></subscript>

A review of the theoretical approach for calculating the resistance between two arbitrary lattice points in an infinite square lattice (perfect and perturbed cases) is carried out using the lattice Green's function. We show how to calculate the resistance between the origin and any other site...

The evolution of the amplitude of two nonlinearly interacting waves is considered, via a set of coupled nonlinear Schrödinger-type equations. The dynamical profile is determined by the wave dispersion laws (i.e. the group velocities and the group velocity dispersion terms) and the nonlinearity...

Studies on thermal diffusion of lattice solitons in Fermi-Pasta-Ulam (FPU)-like lattices were recently generalized to the case of dispersive long-range interactions (LRI) of the Kac-Baker form. The variance of the soliton position shows a stronger than linear time-dependence (superdiffusion) as...

A noisy damping parameter in the equation of motion of a nonlinear oscillator renders the fixed point of the system unstable when the amplitude of the noise is sufficiently large. However, the stability diagram of the system can not be predicted from the analysis of the moments of the linearized...

We have investigated the structural and magnetic properties of <InlineEquation ID="Equ3"> <EquationSource Format="TEX">$\lbrack$</EquationSource> </InlineEquation>Er|Tb<InlineEquation ID="Equ4"> <EquationSource Format="TEX">$\rbrack$</EquationSource> </InlineEquation> multilayers by different scattering methods. Diffuse X-ray scattering under grazing incidence reveals the interface structure in <InlineEquation ID="Equ5"> <EquationSource Format="TEX">$\lbrack$</EquationSource> </InlineEquation>Er|Tb<InlineEquation ID="Equ6"> <EquationSource Format="TEX">$\rbrack$</EquationSource> </InlineEquation>bilayers and trilayers, indicating vertically...</equationsource></inlineequation></equationsource></inlineequation></equationsource></inlineequation></equationsource></inlineequation>

Monte Carlo simulations of magnetization and susceptibility in the 3D XY model are performed for system sizes up to L=384 (significantly exceeding the largest size L=160 considered in work published previously), and fields h ≥ 0.0003125 at two different coupling constants β=0.5, and β=0.55...