The possibility of targeted electrodeposition of metal coatings in the lead–bismuth binary system is considered. The analysis of metal content in the deposits is performed using square-wave stripping voltammetry of solutions containing both lead and bismuth. The results are supported by the data of scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction analysis. The conditions for the formation of Pb7Bi3 (ε-phase), which is promising for the application in superconducting microelectronics, are found.

We experimentally and numerically revealed a salient thermal effect in the transmission of the epsilon-near-zero (ENZ) metamaterial consisting of an array of plasmonic nanorods in a dielectric template. The flavor of the structure is freestanding nanorod segments surrounded by nematic liquid crystals possessing a strong thermal dependence of the anisotropic refractive index. The observed resonant enhancement of the thermal sensitivity of the transmission of this ENZ structure results from its nonlocal optical response giving rise to the zero-transmission effect, control over which is at the heart of our approach.

The results of experiments on measuring the magneto-optical response of hyperbolic metamaterials based on nanorods containing segments of gold and nickel are presented. A comparative analysis of the spectral behavior of the magnetic contrast in the geometry of Voigt and Faraday for samples was carried out, and a phenomenological description of phenomena was proposed. Keywords: magneto-optical effects, plasmons, metamaterials.

Arrays of ordered segmented nanowires are considered as a promising material for three-dimensional information storage systems. However, the presence of a large number of competing interactions significantly complicates the description of the magnetic behavior of such systems. In this work, the influence of the length of the nickel segment on the integral magnetic properties of the array is investigated. In particular, it is shown that the change in the direction of the easy axis of magnetization occurs when the segment length to diameter ratio is in the range from 10 to 20.

Arrays of ordered segmented nanowires, which are ferromagnetic regions separated by non-magnetic inserts, are considered as a promising material for three-dimensional information storage systems. However, the presence of a large number of competing interactions significantly complicates the description of the magnetic behavior of such systems. In this paper, the effect of the segment length on the integral magnetic properties of Ni/Cu wires arrays is investigated. It is shown that the coercivity increases with an increase in the length of the magnetic segment for both the longitudinal and transverse directions of the long axis of the wires relative to the external magnetic field. A change in the direction of the easy magnetization axis was found with the ratio of the Ni segment length to the diameter in the range from 10 to 15.

Arrays of ferromagnetic nanowires are promising for diverse areas of practical application ranging from data storage to drug delivery. This makes it essential to study their magnetic behavior and magnetization reversal mechanisms. Here, we report on the fabrication of ordered hexagonal arrays of iron nanowires by templated electrodeposition with the use of porous anodic alumina templates. This technique made it possible to obtain nanocomposites with aligned nanowires of pure α-Fe that are stable against oxidation. The arrangement of the nanowires is revealed by small-angle X-ray scattering and scanning electron microscopy. Magnetic properties of the nanowire arrays are studied using first-order reversal curves (FORC) analysis supported by micromagnetic calculations and analytical models. Differences in the magnetic behavior of the arrays of nanowires, whose length varies by two orders of magnitude, are discussed. Experimental evidence of the antiparallel magnetization of the long nanowires in the array in low fields is demonstrated.