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Pavel Bessarab - Research

Pavel Bessarab

–

School of Engineering and Natural Sciences

Pavel Bessarab

Research

Location
VR-3 / V03-216
Phone
5254701
Email
bessarab [at] hi.is

Unit
Science Institute
Website
https://sites.google.com/view/pavelbessarab
Published Work
Pavel Bessarab - published work

Curriculum Vitae
Pavel Bessarab - Curriculum Vitae
ORCID site
https://orcid.org/0000-0003-3351-7172

Published works

2021

Experimental identification of two distinct skyrmion collapse mechanismsNature Physics

2020

Generalized Force Approach to Point-to-Point Ionospheric Ray Tracing and Systematic Identification of High and Low RaysIEEE Transactions on Antennas and Propagation
Mechanisms of energy-efficient magnetization switching in a bistable nanowireNanosystems: Physics, Chemistry, Mathematics
Magnetic skyrmion annihilation by quantum mechanical tunnelingNew Journal of Physics
Fully self-consistent calculations of magnetic structure within non-collinear Alexander-Anderson modelNanosystems: Physics, Chemistry, Mathematics
Toward room-temperature nanoscale skyrmions in ultrathin filmsnpj Computational Materials

2019

Stability and lifetime of antiferromagnetic skyrmionsPhysical Review B
Author Correction: Enhanced skyrmion stability due to exchange frustration (Scientific Reports, (2017), 7, 1, (12299), 10.1038/s41598-017-12525-x)Scientific Reports
Skyrmion lifetime in ultrathin filmsPhysical Review B

2018

Interplay between size and stability of magnetic skyrmionsNanosystems: Physics, Chemistry, Mathematics
Corrigendum to “Application of the nudged elastic band method to the point-to-point radio wave ray tracing in IRI modeled ionosphere” [Adv. in Space Res. 60 (2017) 491–497] (S0273117716306883) (10.1016/j.asr.2016.12.003))Advances in Space Research
Identification of Low and High Ionospheric Rays by a Direct Variational Method2018 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018
First-principles prediction of sub-10-nm skyrmions in Pd/Fe bilayers on Rh(111)Physical Review B
Energy surface and lifetime of magnetic skyrmionsJournal of Magnetism and Magnetic Materials
Lifetime of racetrack skyrmionsScientific Reports
Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search MethodPhysical Review Letters
Development of Improved Ionospheric Empirical Model and Software for HF Ray Tracing2018 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018
First-principles prediction of sub-10-nm skyrmions in Pd/Fe bilayers on Rh(111)Physical Review B
The effect of confinement and defects on the thermal stability of skyrmionsPhysica B: Condensed Matter
Models of the energy landscape for an element of shakti spin iceNanosystems: Physics, Chemistry, Mathematics

2017

Calculations of the onset temperature for tunneling in multispin systemsNanosystems: Physics, Chemistry, Mathematics
Comment on “Path to collapse for an isolated Néel skyrmion”Physical Review B
Microscopic theory for coupled atomistic magnetization and lattice dynamicsPhysical Review Materials
Comment on "path to collapse for an isolated Néel skyrmionPhysical Review B
Enhanced skyrmion stability due to exchange frustrationScientific Reports
Application of the nudged elastic band method to the point-to-point radio wave ray tracing in IRI modeled ionosphereAdvances in Space Research
Theory of noncollinear interactions beyond Heisenberg exchange: Applications to bcc FePhysical Review B
Magnetic exchange force microscopy: Theoretical analysis of induced magnetization reversalsNanoscale
Instantons describing tunneling between magnetic states at finite temperatureNanosystems: Physics, Chemistry, Mathematics
Microscopic theory for coupled atomistic magnetization and lattice dynamicsPhysical Review Materials

2016

Energy surface and minimum energy paths for Fréedericksz transitions in bistable cholesteric liquid crystalsPhysical Review E
Tip-surface interaction and rate of magnetic transitionsJournal of Physics: Conference Series
Qualitative insight and quantitative analysis of the effect of temperature on the coercivity of a magnetic systemAIP Advances
Classical to quantum mechanical tunneling mechanism crossover in thermal transitions between magnetic statesFaraday Discussions
Crossover temperature for quantum tunnelling in spin systemsJournal of Physics: Conference Series
Spin relaxation signature of colossal magnetic anisotropy in platinum atomic chainsScientific Reports
Method of Transverse Displacements Formulation for Calculating the HF Radio Wave Propagation Paths. Statement of the Problem and Preliminary ResultsRadiophysics and Quantum Electronics
Investigation of optical path functional for high and low ionospheric radio rays2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016

2015

Testing the method of transverse displacements for calculating paths of the HF radio wave propagation in three dimensional inhomogeneous media2015 1st URSI Atlantic Radio Science Conference, URSI AT-RASC 2015
Method for finding mechanism and activation energy of magnetic transitions, applied to skyrmion and antivortex annihilationComputer Physics Communications

2014

Calculations of magnetic states and minimum energy paths of transitions using a noncollinear extension of the Alexander-Anderson model and a magnetic force theoremPhysical Review B

2013

Noncollinear magnetic ordering in a magnetic dimer supported on a metallic substrateBulletin of the Russian Academy of Sciences: Physics
Effect of hydrogen adsorption on the magnetic properties of a surface nanocluster of ironPhysical Review B
Noncollinear magnetic ordering in a magnetic dimer supported on a metallic substrateBulletin of the Russian Academy of Sciences: Physics
Potential Energy Surfaces and Rates of Spin TransitionsZeitschrift Fur Physikalische Chemie-International Journal of Research in Physical Chemistry & Chemical Physics
Effect of hydrogen adsorption on the magnetic properties of a surface nanocluster of ironPhysical Review B
Size and Shape Dependence of Thermal Spin Transitions in NanoislandsPhysical Review Letters
Size and Shape Dependence of Thermal Spin Transitions in NanoislandsPhysical Review Letters

2012

Harmonic transition-state theory of thermal spin transitionsPhysical Review B
Harmonic transition-state theory of thermal spin transitionsPhysical Review B

2010

Vortices and domain walls: 'wormholes' in unconventional superconductorsInternational Conference on Magnetism (Icm 2009)

2009

Layer-Heterogeneous Magnetic States in Metallic NanosystemsPhysics of the Solid State
Layer-heterogeneous magnetic states in metallic nanosystemsPhysics of the Solid State

Keywords for Specialisation:

Theoretical physics

Green's function methods