Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Kapteijns, Geert"'
Soft, quasilocalized excitations (QLEs) are known to generically emerge in a broad class of disordered solids, and to govern many facets of the physics of glasses, from wave attenuation to plastic instabilities. In view of this key role of QLEs, shed
Externí odkaz:
http://arxiv.org/abs/2303.12887
Publikováno v:
Phys. Rev. E 104, 035001 (2021)
Mechanical disorder in solids, which is generated by a broad range of physical processes and controls various material properties, appears in a wide variety of forms. Defining unified and measurable dimensionless quantifiers, allowing quantitative co
Externí odkaz:
http://arxiv.org/abs/2106.12613
Autor:
Kapteijns, Geert, Richard, David, Bouchbinder, Eran, Schrøder, Thomas B., Dyre, Jeppe C., Lerner, Edan
Publikováno v:
J. Chem. Phys. 155, 074502 (2021)
The dramatic slowing down of relaxation dynamics of liquids approaching the glass transition remains a highly debated problem, where the crux of the puzzle resides in the elusive increase of the activation barrier $\Delta E(T)$ with decreasing temper
Externí odkaz:
http://arxiv.org/abs/2103.11404
Publikováno v:
The Journal of Chemical Physics 154, 081101 (2021)
The disorder-induced attenuation of elastic waves is central to the universal low-temperature properties of glasses. Recent literature offers conflicting views on both the scaling of the wave attenuation rate $\Gamma(\omega)$ in the low-frequency lim
Externí odkaz:
http://arxiv.org/abs/2008.08337
Publikováno v:
Phys. Rev. Lett. 126, 015501 (2021)
Plastic deformation in amorphous solids is known to be carried by stress-induced localized rearrangements of a few tens of particles, accompanied by the conversion of elastic energy to heat. Despite their central role in determining how glasses yield
Externí odkaz:
http://arxiv.org/abs/2007.08181
Autor:
Richard, David, González-López, Karina, Kapteijns, Geert, Pater, Robert, Vaknin, Talya, Bouchbinder, Eran, Lerner, Edan
Publikováno v:
Phys. Rev. Lett. 125, 085502 (2020)
It has been recently established that the low-frequency spectrum of simple computer glass models is populated by soft, quasilocalized nonphononic vibrational modes whose frequencies $\omega$ follow a gapless, universal distribution ${\cal D}(\omega)\
Externí odkaz:
http://arxiv.org/abs/2003.07616
Publikováno v:
Phys. Rev. E 101, 032130 (2020)
Structural glasses formed by quenching a melt possess a population of soft quasilocalized excitations --- often called `soft spots' --- that are believed to play a key role in various thermodynamic, transport and mechanical phenomena. Under a narrow
Externí odkaz:
http://arxiv.org/abs/1912.10930
Autor:
Moriel, Avraham, Kapteijns, Geert, Rainone, Corrado, Zylberg, Jacques, Lerner, Edan, Bouchbinder, Eran
Publikováno v:
The Journal of Chemical Physics 151, 104503 (2019)
The attenuation of long-wavelength phonons (waves) by glassy disorder plays a central role in various glass anomalies, yet it is neither fully characterized, nor fully understood. Of particular importance is the scaling of the attenuation rate $\Gamm
Externí odkaz:
http://arxiv.org/abs/1905.03378
In this brief note we comment on the recent results presented in arXiv:1812.08736v1
Externí odkaz:
http://arxiv.org/abs/1902.06225
Publikováno v:
Phys. Rev. E 99, 012106 (2019)
We present a model and protocol that enable the generation of extremely stable computer glasses at minimal computational cost. The protocol consists of an instantaneous quench in an augmented potential energy landscape, with particle radii as additio
Externí odkaz:
http://arxiv.org/abs/1808.00018