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Avalanches in tip-driven interfaces in random media
- Source :
- CONICET Digital (CONICET), Consejo Nacional de Investigaciones Científicas y Técnicas, instacron:CONICET, EPL-Europhysics Letters, EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2016, ⟨10.1209/0295-5075/113/10002⟩
- Publication Year :
- 2016
- Publisher :
- Europhysics Letters, 2016.
-
Abstract
- We analyse by numerical simulations and scaling arguments the avalanche statistics of 1-dimensional elastic interfaces in random media driven at a single point. Both global and local avalanche sizes are power-law distributed, with universal exponents given by the depinning roughness exponent $\zeta$ and the interface dimension $d$, and distinct from their values in the uniformly driven case. A crossover appears between uniformly driven behaviour for small avalanches, and point driven behaviour for large avalanches. The scale of the crossover is controlled by the ratio between the stiffness of the pulling spring and the elasticity of the interface; it is visible both in the global and local avalanche-size distributions, as in the average spatial avalanche shape. Our results are relevant to model experiments involving locally driven elastic manifolds at low temperatures, such as magnetic domain walls or vortex lines in superconductors.<br />Comment: 6 pages, 6 figures
- Subjects :
- Magnetic domain
Physics::Instrumentation and Detectors
Ciencias Físicas
Crossover
FOS: Physical sciences
General Physics and Astronomy
01 natural sciences
Numerical Simulations
010305 fluids & plasmas
purl.org/becyt/ford/1 [https]
0103 physical sciences
medicine
Statistical physics
[PHYS.COND.CM-DS-NN]Physics [physics]/Condensed Matter [cond-mat]/Disordered Systems and Neural Networks [cond-mat.dis-nn]
Elasticity (economics)
[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]
010306 general physics
Scaling
Superconductivity
Physics
[PHYS]Physics [physics]
Random media
Stiffness
Disordered Systems and Neural Networks (cond-mat.dis-nn)
purl.org/becyt/ford/1.3 [https]
Condensed Matter - Disordered Systems and Neural Networks
Vortex
Astronomía
medicine.symptom
CIENCIAS NATURALES Y EXACTAS
Depinning
Subjects
Details
- Language :
- English
- ISSN :
- 02955075 and 12864854
- Database :
- OpenAIRE
- Journal :
- CONICET Digital (CONICET), Consejo Nacional de Investigaciones Científicas y Técnicas, instacron:CONICET, EPL-Europhysics Letters, EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2016, ⟨10.1209/0295-5075/113/10002⟩
- Accession number :
- edsair.doi.dedup.....7aa614a1d80715da6a8218a67941fb45