Photomagnetic effect in bilayer two-dimensional electron–hole systems

In tilted magnetic fields a bilayer electron–hole system is found to generate a photocurrent under terahertz radiation as the system is tuned to electron cyclotron resonance conditions. The photoinduced current amplitude oscillates with the magnetic field in correlation with Shubnikov–de Haas oscillations for electrons. The phenomenon is accounted for by a photomagnetic effect in electron–hole systems in the quantum Hall regime and has potentialities for terahertz detection and spectroscopy.     

Fabrication of LIGA masks for microfluidic analytical systems

Preliminary results of fabrication and testing of LIGA mask samples for deep x-ray lithography in the spectral range of 3.5–13.5 keV are presented. The mask fabrication method is based on direct mask patterning with minimum element sizes of ≥ 10 μm by a synchrotron radiation x-ray microbeam. Such a method does not require an intermediate mask, which significantly simplifies fabrication and reduces the laboriousness and cost of LIGA masks.     

Internal nonlinear resonance of charged drop capillary oscillations in a dielectric medium at multimode initial deformation of the interface

Technical Physics - An analytical expression for the generatrix of the shape of a nonlinearly vibrating charged drop of a perfect incompressible conducting fluid immersed in an ideal incompressible...     

Al/Nb interface study based on the analysis of the energy spectra of reflected electrons

The interface between a Nb layer deposited on an Al layer is studied via comparison of measured and calculated reflected electron energy loss spectra. The interface region analysis is performed after layer-by-layer sputtering of the sample combined with Auger monitoring of its component composition. The elaborated spectrum calculation technique makes it possible to characterize Al and Nb distributions in the interface region with a nanometer resolution. The possibility of determining the number of phases at the Al/Nb interface is discussed.     

Influence of a Buffer Layer on the Formation of a Thin-Film Nickel Catalyst for Carbon Nanotube Synthesis

Technical Physics - The formation of nanoparticles of a thin-film nickel catalyst applied on a buffer layer in the form of pure titanium, titanium oxide, or titanium nitride has been studied. It...     

On the Numerical Calculation of Frustrations in the Ising Model

JETP Letters - A quantitative measure of magnetic frustration is defined as a thermodynamically averaged relative number of excited pair interactions in the Hamiltonian of a system. The Metropolis...     

Tunneling of Microwave Radiation through Three-Layer Structures Containing Ferrite Layer

Technical Physics - Tunneling of microwave radiation through a symmetric three-layer structure in which the central ferrite layer is interfaced with two layers of a material with negative...     

Investigation of a Contamination Film Formed by the Electron Beam Irradiation

Technical Physics - In the study of materials on electron probe devices in the field of action of the electron beam, a contaminating hydrocarbon film is formed, which affects the experimental...