6 papers
Reconfigurable Current Distributions in Percolating Au Films and CrO2 Powder Compacts - Beyond Geometrical Connectivity
E. Yu. Beliayev, I. G. Mirzoiev, V. A. Horielyi
Despite fundamental differences in morphology, dimensionality, and microscopic transport, semicontinuous Au films and compacted CrO2 powders converge on a common network-level prin…
Transport-Weighted Coercivity in Granular CrO2: Why Magnetoresistance and Magnetization Can Disagree
E. Yu. Beliayev, I. G. Mirzoiev, V. A. Horielyi +1
Magnetoresistance hysteresis is often used to estimate the coercive field of a magnetic material. We reanalyse our published magnetotransport and magnetometry data on compacted pow…
Emergent Coherence at the Edge of Magnetism: Low-Doped La2-xSrxCuO4+delta Revisited
E. Yu. Beliayev, Y. K. Mishra, I. A. Chichibaba +3
The La2-xSrxCuO4+delta (LSCO) system provides a unique experimental setting for exploring how magnetism, superconductivity, and disorder jointly shape charge transport in a doped M…
Electron Transport in Compacted Powders of VO2 Nanoparticles: Variable Range Hopping vs Percolation Behavior
E. Yu. Beliayev, Yogendra Kumar Mishra, Horst-Gunter Rubahn +4
Electron transport properties in compacted VO2 nanopowders were studied. While VO2 usually exhibits a first-order metal-insulator transition (MIT) at ~340K, in our compressed nanop…
Changes in the coercivity fields of magnetoresistance hysteresis loops under the influence of a spin-polarized current
E. Yu. Beliayev, I. G. Mirzoiev, V. V. Andrievskii +4
Using the example of a pressed sample consisting of chromium dioxide nanoparticles coated with insulating shells, we study the relationship between the electronic transport system…
Features of Low Temperature Tunnel Magnetoresistance in Pressed Powder of Chromium Dioxide
V. A. Horielyi, N. V. Dalakova, E. Yu. Beliayev
Resistive and magnetoresistive properties of two samples of compacted powders of ferromagnetic half-metal CrO_{2} with shape anisotropy of nanoparticles were studied. The powders w…