86 citations · 231 across the 10 of their papers we have counts for
10 papers
Mechanical dissipation from charge and spin transitions in oxygen deficient SrTiO_3
Marcin Kisiel, Oleg O. Brovko, Dilek Yildiz +4
Bodies in relative motion separated by a gap of a few nanometers can experience a tiny friction force. This non-contact dissipation can have various origins and can be successfully…
Correlation-Driven Dimerization and Topological Gap Opening in Isotropically Strained Graphene
Sandro Sorella, Kazuhiro Seki, Oleg O. Brovko +4
The phase diagram of isotropically expanded graphene cannot be correctly predicted by ignoring either electron correlations, or mobile carbons, or the effect of applied stress, as…
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…
Controlling the magnetism of oxygen surface vacancies in strontium titanate through charging
Oleg O. Brovko, Erio Tosatti
We discuss, based on first principles calculations, the possibility to tune the magnetism of oxygen vacancies at the (001) surface of strontium titanate . The…
Potential Energy Driven Spin Manipulation via a Controllable Hydrogen Ligand
Peter Jacobson, Matthias Muenks, Gennadii Laskin +4
Spin-bearing molecules can be stabilized on surfaces and in junctions with desirable properties such as a net spin that can be adjusted by external stimuli. Using scanning probes,…
Quantum Engineering of Spin and Anisotropy in Magnetic Molecular Junctions
Peter Jacobson, Tobias Herden, Matthias Muenks +5
Single molecule magnets and single spin centers can be individually addressed when coupled to contacts forming an electrical junction. In order to control and engineer the magnetis…
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…