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Slow relaxation and aging phenomena at the nanoscale in granular materials

Zaitsev, V Y ; Gusev, V E ; Tournat, V ; Richard, P

Physical review letters, 2014-03, Vol.112 (10), p.108302-108302, Article 108302 [Periódico revisado por pares]

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Título:
Slow relaxation and aging phenomena at the nanoscale in granular materials
Autor: Zaitsev, V Y ; Gusev, V E ; Tournat, V ; Richard, P
Assuntos: Asperity ; Bistability ; Condensed Matter ; Fluctuation ; Grains ; Granular materials ; Metastable state ; Nanostructure ; Nonlinear dynamics ; Other ; Physics
É parte de: Physical review letters, 2014-03, Vol.112 (10), p.108302-108302, Article 108302
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Granular matter exhibits a rich variety of dynamic behaviors, for which the role of thermal fluctuations is usually ignored. Here we show that thermal fluctuations can pronouncedly affect contacting nanoscale asperities at grain interfaces and brightly manifest themselves through the influence on nonlinear-acoustic effects. The proposed mechanism based on intrinsic bistability of nanoscale contacts comprises a wealth of slow-dynamics regimes including slow relaxations and aging as universal properties of a wide class of systems with metastable states.
Editor: United States: American Physical Society
Idioma: Inglês

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