In this work, we propose the finite-element-based mathematical model of metal-inducer system. This system consists a coil with put-on C-shaped ferromagnets. We study how measurands inducer, such as voltage and uncompensated force acting on metal, depend parameters. variate geometry to estimate boundary effect impact. Also, depends ferromagnets' spacing their number. The inhomogeneity electric c...

in this paper, two inverse problems of stephen kind with local (dirichlet) boundary conditions are investigated. in the first problem only a part of boundary is unknown and in the second problem, the whole of boundary is unknown. for the both of problems, at first, analytic expressions for unknown boundary are presented, then by using these analytic expressions for unknown boundaries and bounda...

We propose a method for treating the boundary conditions at the exposed surface of semiconductor nanostructures, and compare the results from simulations based on such a method with experimental measurements on test devices defined electrostatically by metal gates on AlGaAs/GaAs heterostructures. In particular, we show that the pinch-off voltage of quantum point contacts realized with split gat...

We demonstrate that the electrical conductivity of metal/semiconductor oxide heterojunctions can be increased over 7 orders of magnitude by inserting an ultrathin layer of LaAlO3. This counterintuitive result, that an interfacial barrier can be driven transparent by inserting a wide-gap insulator, arises from the large internal electric field between the two polar LaAlO3 surfaces. This field mo...

We present an numerical investigation of a planar waveguide surface plasmon resonance (SPR) sensor in silicon-oninsulator (SOI) for detecting a change in the imaginary part of the refractive index. By adding a thin adsorbed layer between the metal-analyte boundary it is found that an enhanced sensitivity of the sensor is obtained, suggesting the possibility of realizing a highly integrated and ...

In order to investigate the origin of the until now unaccounted excess noise and to minimize the uncontrollable phenomena at the transition in X-ray mi-crocalorimeters we have developed superconducting transition-edge sensors into an edgeless geometry, the so-called Corbino disk (CorTES), with super-conducting contacts in the centre and at the outer perimeter. The measured rms current noise and...

Magnetoresistance of the t.ittle organic metal, where BO is bis[ethylenedioxy)tetrathiafulvalene, is investigated. The angle dependent oscillations indicate the existence of cylindrical Fermi surface, and trie observed penodicity is consistent with the calculated band structure. The amplitude of the oscillation is very small in the direction where the Fermi surface touches trie zone boundary. T...

We investigated the surface work function (WS) and its spatial distribution for epitaxial VO2/TiO2 thin films using Kelvin probe force microscopy (KPFM). Nearly grain-boundary-free samples allowed observation of metallic and insulating domains with distinct WS values, throughout the metal-insulator transition. The metallic fraction, estimated from WS maps, describes the evolution of the resista...

In preparation for an experimental study of magnetorotational instability (MRI) in liquid metal, we present non-ideal axisymmetric magnetohydrodynamic simulations of the nonlinear evolution of MRI in the experimental geometry. The simulations adopt fully insulating boundary conditions. No-slip conditions are imposed at all boundaries. A clear linear phase is observed with reduced linear growth ...

We investigate the radiative properties of plasmonic core-shell nanowire resonators and, using boundary element method calculations, demonstrate enhanced radiative decay rate by up to 3500 times in nanoscale compound semiconductor/metal cavities. Calculation of the local density of optical states enables identification of new types of modes in cavities with mode volumes on the order of 10(-4)(λ...