69 citations · 275 across the 15 of their papers we have counts for
8 papers · 1 filter
Fast spin dynamics in hexagonal arrays of Fe atoms on metallic surface
Tamene R. Dasa, Valeri S. Stepanyuk
Understanding the nature of magnetic interactions in ultra-small magnetic ensembles and their intrinsic properties is vital to uncover the dynamics therein. In this study we reveal…
Gate control of spin-polarized conductance in alloyed transition metal nano-contacts
Ilia N. Sivkov, Oleg O. Brovko, Ivan Rungger +1
To date, endeavors in nanoscale spintronics are dominated by the use of single-electron or single-spin transistors having at their heart a semiconductor, metallic or molecular quan…
Direct surface charging and alkali-metal doping for tuning the interlayer magnetic order in planar nanostructures
Tamene R. Dasa, Valeri S. Stepanyuk
The continuous reduction of magnetic units to ultra small length scales inspires efforts to look for a suitable means of controlling magnetic states. In this study we show two surf…
Ultrafast quantum spin-state switching in the Co-octaethylporphyrin molecular magnet with a terahertz pulsed magnetic field
Oleg V. Farberovich, Victoria L. Mazalova, Valeri S. Stepanyuk
Molecular spin crossover switches are the objects of intense theoretical and experimental studies in recent years. This interest is due to the fact that these systems allow one to…
Relativistic peculiarities at stepped surfaces: surprising energetics and unexpected diffusion patterns
Oleg O. Brovko, Nikolay N. Negulyaev, Valeri S. Stepanyuk
We revive intriguing, yet still unexplained, experimental results of Ehrlich and co-workers [ Phys. Rev. Lett. 77 1334 (1996); Phys. Rev. Lett. 67 2509 (1991)] who have observed, t…
Confined bulk states as a long-range sensor for impurities and a transfer channel for quantum information
Oleg O. Brovko, Pavel A. Ignatiev, Valeri S. Stepanyuk
We show that confinement of bulk electrons can be observed at low-dimensional surface structures and can serve as a long-range sensor for the magnetism and electronic properties of…
Quantum Spin Holography with Surface State Electrons
Oleg O. Brovko, Valeri S. Stepanyuk
In a recent paper Moon and coworkers [C.R. Moon et al., Nature Nanotechnology 4, 167 (2009)] have shown that the single-atom limit for information storage density can be overcome b…
Tailoring exchange interactions in engineered nanostructures: Ab initio study
O. O. Brovko, P. A. Ignatiev, V. S. Stepanyuk +1
We present a novel approach to spin manipulation in atomic-scale nanostructures. Our ab initio calculations clearly demonstrate that it is possible to tune magnetic properties of s…