Efficient evaluation of atom tunneling combined with electronic structure calculations

V Ásgeirsson, A Arnaldsson, H Jónsson - The Journal of Chemical …, 2018 - pubs.aip.org
Methodology for finding optimal tunneling paths and evaluating tunneling rates for atomic
rearrangements is described. First, an optimal JWKB tunneling path for a system with fixed …

Magnetic skyrmion annihilation by quantum mechanical tunneling

SM Vlasov, PF Bessarab, IS Lobanov… - New Journal of …, 2020 - iopscience.iop.org
Magnetic skyrmions are nano-scale magnetic states that could be used in various
spintronics devices. A central issue is the mechanism and rate of various possible …

Thermal stability of magnetic states in submicron magnetic islands

SY Liashko, IS Lobanov, VM Uzdin… - Наносистемы: физика …, 2017 - cyberleninka.ru
The lifetime of magnetic states in single domain micromagnetic islands is calculated within
the harmonic approximation to transition state theory. Stable magnetic states, minimum …

Instantons describing tunneling between magnetic states at finite temperature

SM Vlasov, PF Bessarab, VM Uzdin… - Наносистемы: физика …, 2017 - cyberleninka.ru
A method is presented for finding instantons in magnetic systems optimal paths
corresponding to tunneling from one magnetic state to another at a finite temperature. The …