57 citations · 220 across the 12 of their papers we have counts for
12 papers
Conductance, continuity, and ferromagnetic percolation thresholds in thin films
Gregory Kopnov, Alexander Gerber
Classical percolation models predict the metal-insulator transition and the onset of the long-range ferromagnetic order at the same topological continuity threshold. We tested this…
High mobility conducting channel at semi-insulating GaAs -- metal oxide interfaces
Gregory Kopnov, Alexander Gerber
Absence of an efficient technology of GaAs passivation limits the use of III-V semiconductors in modern electronics. The effect reported here can possibly lead to a solution of thi…
Resistivity Minimum in Granular Composites and Thin Metallic Films
A. Gerber, I. Kishon, D. Bartov +1
We analyze the temperature dependence of conductivity in thick granular ferromagnetic compounds NiSiO2 and in thin weakly coupled films of Fe, Ni and Py in vicinity of metal-insula…
MegaOhm Extraordinary Hall effect in oxidized CoFeB
G. Kopnov, A. Gerber
We report on development of controllably oxidized CoFeB ferromagnetic films demonstrating the extraordinary Hall effect (EHE) resistivity exceeding 1 Ohmcm and magnetic field sensi…
Absence of the Ordinary and Extraordinary Hall effects scaling in granular ferromagnets at metal-insulator transition
D. Bartov, A. Segal, M. Karpovski +1
Universality of the extraordinary Hall effect scaling was tested in granular three-dimensional Ni-SiO2 films across the metal-insulator transition. Three types of magnetotransport…
Dynamics of Successive Minor Hysteresis Loops
Y. W. Windsor, A. Gerber, M. Karpovski
Cumulative growth of successive minor hysteresis loops in Co/Pd multilayers with perpendicular anisotropy was studied in the context of time dependent magnetization reversal dynami…