110 citations · 1.3k across the 57 of their papers we have counts for
21 papers · 1 filter
Deterministic roughening in the dc-driven precessional regime of domain walls
E. F. Pusiol, V. Lecomte, S. Bustingorry +1
We numerically study the dynamics of extended domain walls in homogeneous ferromagnets driven by a uniform magnetic field at zero temperature. Using both micromagnetic Landau-Lifsh…
Field-dependent roughness of moving domain walls in a Pt/Co/Pt magnetic thin film
María José Cortés Burgos, Pamela C. Guruciaga, Daniel Jordán +5
The creep motion of domain walls driven by external fields in magnetic thin films is described by universal features related to the underlying depinning transition. One key paramet…
Domain-wall roughness in GdFeCo thin films: crossover length scales and roughness exponents
Lucas J. Albornoz, Pamela C. Guruciaga, Vincent Jeudy +2
Domain-wall dynamics and spatial fluctuations are closely related to each other and to universal features of disordered systems. Experimentally measured roughness exponents charact…
Tuning Ginzburg-Landau theory to quantitatively study thin ferromagnetic materials
Pamela C. Guruciaga, Nirvana Caballero, Vincent Jeudy +2
Along with experiments, numerical simulations are key to gaining insight into the underlying mechanisms governing domain wall motion in thin ferromagnetic systems. However, a direc…
Statistics of roughness for fluctuating interfaces: A survey of different scaling analyses
J. Guyonnet, E. Agoritsas, P. Paruch +1
Ferroic domain walls are known to display the characteristic scaling properties of self-affine rough interfaces. Different methods have been used to extract roughness information i…
Intermittent collective dynamics of domain walls in the creep regime
Matías Pablo Grassi, Alejandro B. Kolton, Vincent Jeudy +3
We study the ultra slow domain wall motion in ferromagnetic thin films driven by a weak magnetic field. Using time resolved magneto-optical Kerr effect microscopy, we access to the…
Excess velocity of magnetic domain walls close to the depinning field
Nirvana B. Caballero, Iván Fernández Aguirre, Lucas J. Albornoz +8
Magnetic field driven domain wall velocities in [Co/Ni] based multilayers thin films have been measured using polar magneto-optic Kerr effect microscopy. The low field results are…
Universal Depinning Transition of Domain Walls in Ultrathin Ferromagnets
Rebeca Diaz Pardo, Williams Savero Torres, Alejandro Kolton +2
We present a quantitative and comparative study of magnetic field driven domain wall depinning transition in different ferromagnetic ultrathin films over a wide range of temperatur…
Pinning dependent field driven domain wall dynamics and thermal scaling in an ultrathin Pt/Co/Pt magnetic film
J. Gorchon, S. Bustingorry, J. Ferré +3
Magnetic field-driven domain wall motion in an ultrathin Pt/Co(0.45nm)/Pt ferromagnetic film with perpendicular anisotropy is studied over a wide temperature range. Three different…
Numerical Approaches on Driven Elastic Interfaces in Random Media
E. E. Ferrero, S. Bustingorry, A. B. Kolton +1
We discuss the universal dynamics of elastic interfaces in quenched random media. We focus in the relation between the rough geometry and collective transport properties in driven…
Thermal rounding of the depinning transition in ultrathin Pt/Co/Pt films
S. Bustingorry, A. B. Kolton, T. Giamarchi
We perform a scaling analysis of the mean velocity of extended magnetic domain walls driven in ultrathin Pt/Co/Pt ferromagnetic films with perpendicular anisotropy, as a function o…
Thermal rounding exponent of the depinning transition of an elastic string in a random medium
S. Bustingorry, A. B. Kolton, T. Giamarchi
We study numerically thermal effects at the depinning transition of an elastic string driven in a two-dimensional uncorrelated disorder potential. The velocity of the string exactl…
Anisotropic finite-size scaling of an elastic string at the depinning threshold in a random-periodic medium
Sebastian Bustingorry, Alejandro B. Kolton
We numerically study the geometry of a driven elastic string at its sample-dependent depinning threshold in random-periodic media. We find that the anisotropic finite-size scaling…
Random-Manifold to Random-Periodic Depinning of an Elastic Interface
S. Bustingorry, A. B. Kolton, T. Giamarchi
We study numerically the depinning transition of driven elastic interfaces in a random-periodic medium with localized periodic-correlation peaks in the direction of motion. The ana…
The universal high temperature regime of pinned elastic objects
Sebastian Bustingorry, Pierre Le Doussal, Alberto Rosso
We study the high temperature regime within the glass phase of an elastic object with short ranged disorder. In that regime we argue that the scaling functions of any observable ar…
Thermal Effects in the dynamics of disordered elastic systems
S. Bustingorry, A. B. Kolton, A. Rosso +2
Many seemingly different macroscopic systems (magnets, ferroelectrics, CDW, vortices,..) can be described as generic disordered elastic systems. Understanding their static and dyna…
Strong Dynamical Heterogeneities in the Violation of the Fluctuation-Dissipation Theorem in Spin Glasses
F. Roma, S. Bustingorry, P. M. Gleiser +1
We analyze numerically the violation of the fluctuation-dissipation theorem (FDT) in the Edwards-Anderson (EA) spin glass model. Using single spin probability densities we…
Dynamic fluctuations of elastic lines in random environments
Sebastian Bustingorry, Jose Luis Iguain, Claudio Chamon +2
We study the fluctuations of the two-time dependent global roughness of finite size elastic lines in a quenched random environment. We propose a scaling form for the roughness dist…
Signature of the Ground-State Topology in the Low-Temperature Dynamics of Spin Glasses
F. Romá, S. Bustingorry, P. M. Gleiser
We numerically address the issue of how the ground state topology is reflected in the finite temperature dynamics of the Edwards-Anderson spin glass model. In this system a…
Diffusion and percolation in anisotropic random barrier models
Sebastian Bustingorry
An anisotropic random barrier model is presented, in which the transition probabilities in different directions have different probability density functions. At low temperatures, t…
Anisotropic thermally activated diffusion in percolation systems
S. Bustingorry, G. L. Insua
We present a study of static and frequency-dependent diffusion with anisotropic thermally activated transition rates in a two-dimensional bond percolation system. The approach acco…