O.Braun's Main Page

Main page of Oleg Braun (Inst. of Physics, Kiev, Ukraine)

Research

Outline
Surface science

The Frenkel-Kontorova model

The driven LG (lattice-gas) model
Tribology
- Introduction
- Model
- Simulation results
- Onset of sliding
- Self-ordering of the lubricant
- Role of lubricant molecule shape
- Microscopic rolling friction
- Minimal sliding velocity
- Earthquake-like model
- Friction on mesoscopic scale
Earthquakes (updated)
- Gutenberg-Richter law
- Omori law
- Foreshocks (new)

Publications (selected; full list & pdf files)

Book and survey papers

O.M. Braun, Tribology Letters 39 (2010) 283-293 "Bridging the gap between the atomic-scale and macroscopic modeling of friction"
O.M. Braun and A.G. Naumovets, Surf. Sci. Reports 60 (2006) 79-158 "Nanotribology: Microscopic mechanisms of friction"
O.M. Braun and Yu.S. Kivshar, "The Frenkel-Kontorova Model: Concepts, Methods, and Applications" (Springer-Verlag, Berlin, 2004; Russian translation: Fizmatlit, Moscow, 2008)

Original papers

Oleg M. Braun and Michel Peyrard, Geophysical Journal International 213 (2018) 676 "Seismic quiescence in a frictional earthquake model"
O.M. Braun, N. Miyashita, H. Fujii, and B.N.J. Persson, Tribology International 123 (2018) 209 "On the load dependence of friction: Role of the long-range elastic coupling"
O.M. Braun, B. Steenwyk, A. Warhadpande, and B.N.J. Persson, EPL 113 (2016) 56002 "On the dependency of friction on load: Theory and experiment"
O.M. Braun, EPL 109 (2015) 48004 "Stick-slip vs. smooth sliding in the multicontact interface"
O.M. Braun and J. Scheibert, Tribology Letters 56 (2014) 553 "Propagation length of self-healing slip pulses at the onset of sliding: A toy model"
O.M. Braun and E. Tosatti, Phys. Rev. E 90 (2014) 032403 "Aftershocks in a frictional earthquake model"
O.M. Braun and M. Peyrard, Phys. Rev. E 87 (2013) 032808 "Role of aging in a minimal model of earthquakes"
O.M. Braun, Nicola Manini, and Erio Tosatti, Phys. Rev. Lett. 110 (2013) 085503 "Size scaling of static friction"
O.M. Braun and M. Peyrard, Phys. Rev. E 85 (2012) 026111 "Crack in the frictional interface as a solitary wave"
O.M. Braun, M. Peyrard, D.V. Stryzheus, and E. Tosatti, Tribology Letters 48 (2012) 11 "Collective effects at frictional interfaces"
O.M. Braun and M. Peyrard, Phys. Rev. E 83 (2011) 046129 "Dependence of kinetic friction on velocity: Master equation approach"
O.M. Braun and M. Peyrard, Phys. Rev. E 82 (2010) 036117 "Master equation approach to friction at the mesoscale"
O.M. Braun and E. Tosatti, Europhys. Lett. 88 (2009) 48003 "Kinetics of stick-slip friction in boundary lubrication"
O.M. Braun, I. Barel, and M. Urbakh, Phys. Rev. Lett. 103 (2009) 194301 "Dynamics of transition from static to kinetic friction"
O.M. Braun, N. Manini, and E. Tosatti, Phys. Rev. B 78 (2008) 195402 "Role of lubricant molecular shape in microscopic friction"
O.M. Braun and E. Tosatti, Phil. Mag. Lett. 88 (2008) 509 "Rack-and-pinion effects in molecular rolling friction"
O.M. Braun and M. Peyrard, Phys. Rev. Lett. 100 (2008) 125501 "Modeling friction on a mesoscale: Master equation for the earthquakelike model"
O.M. Braun, Phys. Rev. Lett. 95 (2005) 126104 "Simple model of microscopic rolling friction"
O.M. Braun, A. Vanossi, and E. Tosatti, Phys. Rev. Lett. 95 (2005) 026102 "Incommensurability of a confined system under shear"
O.M. Braun and Bambi Hu, Phys. Rev. E 71 (2005) 032103 "Clustering of atoms in a model with multiple thermostats"
O.M. Braun and Bambi Hu, Phys. Rev. E 71 (2005) 031111 "Two-dimensional two-state lattice-gas model"
O.M. Braun, M. Paliy, and S. Consta, Phys. Rev. Lett. 92 (2004) 256103 "Ordering of a thin lubricant film due to sliding"
O.M. Braun and J. Röder, Phys. Rev. Lett. 88 (2002) 096102 "Transition from stick-slip to smooth sliding: An earthquakelike model"
O.M. Braun, Phys. Rev. E 63 (2001) 011102 "Role of entropy barriers for diffusion in the periodic potential"
O.M. Braun, Bambi Hu, and A. Zeltser, Phys. Rev. E 62 (2000) 4235-4245 "Driven kink in the Frenkel-Kontorova model"
O.M. Braun, A. R. Bishop, and J. Röder, Phys. Rev. Lett. 82 (1999) 3097-3100 "Multistep locked-to-sliding transition in a thin lubricant film"
O.M. Braun, Yu.S. Kivshar, and M. Peyrard, Phys. Rev. E 56 (1997) 6050-6064 "Kink's internal modes in the Frenkel-Kontorova model"
O.M. Braun, O.A. Chubykalo, and T.P. Valkering, Phys. Rev. B 53 (1996) 13877-13882 "Structure of kinks for a complex ground state"
O.M. Braun, Surface Sci. 230 (1990) 262-276 "Adiabatic motion of an atomic chain in periodic potential"

Curriculum Vitae ( full version | pdf 0.3 Mb)

Surname: BRAUN      First name: Oleg

Address:  Institute of Physics
               National Academy of Sciences of Ukraine
               46 Science Avenue, Kiev 03028 (Ukraine)
               Tel.: (+38044) 530-1850
               E-mail: obraun.gm@gmail.com

               web: IoP (this website), Google (short version)


Education: Dr.Sci. ("Doctor of Phys.-Math. Sciences", Solid State Physics, 1991)

Employment: Institute of Physics (Principal Research Fellow)

Specialization: nonlinear physics, surface physics, tribology, earthquakes, computer simulation

Publications: one book and >100 papers in refereed journals (CI = 2,241/1,815; CI per item = 21.34; h = 25)

Prize: the State Prize of Ukraine (2008)

Teaching courses:

Computer Modelling in Physics

Theoretical Aspects of Solid State Physics

Surface Science

Collaboration

Michel Peyrard, Laboratoire de Physique, ENS de Lyon (France)
Julien Scheibert, LTDS, Ecole Centrale de Lyon (France)
Nicola Manini, Universita degli Studi di Milano (Italy)

Useful Links

VMD (Visual Molecular Dynamics)
Image Magick - magician converter of graphic files
RasTop (Molecular Visualization Software) by Philippe Valadon
Translators from L^AT_EX to HTML: T_TH and H^EV^EA
T_EX to ppt (Power Point) converter: TeX4PPT by Steve Gunn (4.6 Mb)
Friction Lab by Franz-Josef Elmer

Some Photos & Videos

Last updated on March 25, 2018 by Oleg Braun Hit Counter: since 04/2012