Zobrazeno 1 - 10
of 4 586
pro vyhledávání: '"Zaccone, A"'
Autor:
Zaccone, Alessio
The jamming transition of frictionless athermal particles is a paradigm to understand the mechanics of amorphous materials at the atomic scale. Concepts related to the jamming transition and the mechanical response of jammed packings have cross-ferti
Externí odkaz:
http://arxiv.org/abs/2410.21439
Autor:
Liu, Amelia C. Y., Pham, Huyen, Bera, Arabinda, Petersen, Timothy C., Sirk, Timothy W., Mudie, Stephen T., Tabor, Rico F., Nunez-Iglesias, Juan, Zaccone, Alessio, Baggioli, Matteo
The notion of defects in crystalline phases of matter has been extremely powerful for understanding crystal growth, deformation and melting. These discontinuities in the periodic order of crystals are mathematically described by the Burgers vector, d
Externí odkaz:
http://arxiv.org/abs/2410.09391
Autor:
Sidorova, M., Semenov, A. D., Zaccone, A., Charaev, I., Gonzalez, M., Schilling, A., Gyger, S., Steinhauer, S.
Publikováno v:
Phys. Rev. B 110, 134513, 2024
Heat transport in bulk materials is well described using the Debye theory of 3D vibrational modes (phonons) and the acoustic match model. However, in cryogenic nanodevices, phonon wavelengths exceed device dimensions, leading to confinement effects t
Externí odkaz:
http://arxiv.org/abs/2410.08878
Autor:
Zaccone, Alessio
The miniaturization of electronic devices has led to the prominence, in technological applications, of semiconductor thin films that are only a few nanomenters thick. In spite of intense research, the thickness-dependent resistivity or conductivity o
Externí odkaz:
http://arxiv.org/abs/2410.04116
Describing the dynamics and thermodynamics of amorphous materials near the glass transition is a major challenge in soft-matter physics and polymer engineering. The relaxation time changes many orders of magnitude as the temperature approaches the gl
Externí odkaz:
http://arxiv.org/abs/2409.17291
Autor:
Anzivino, Carmine, Xhani, Klejdis, Carpineti, Marina, Verrastro, Stefano, Zaccone, Alessio, Vailati, Alberto
Publikováno v:
J. Phys. Chem. Lett. 15, 9030-9036 (2024)
In a binary fluid mixture, the concentration gradient of a heavier molecular solute leads to a diffusive flux of solvent and solute to achieve thermodynamic equilibrium. If the solute concentration decreases with height, the system is always in a con
Externí odkaz:
http://arxiv.org/abs/2408.16432
The underlying structural disorder renders the concept of topological defects in amorphous solids difficult to apply and hinders a first-principle identification of the microscopic carriers of plasticity and of the regions more prone to structural re
Externí odkaz:
http://arxiv.org/abs/2407.20631
Publikováno v:
Physical Review B 110, 014107 (2024)
Plastic deformation in metallic glasses at room temperature leads to the development of shear bands due to shear localization. In many experiments, shear bands have shown local density variations along their path, with a distinct imbalance in magnitu
Externí odkaz:
http://arxiv.org/abs/2407.07733
Autor:
Zaccone, Alessio
Publikováno v:
Physical Review E 110, L052101 (2024)
The shear viscosity is a fundamental transport property of matter. Here we derive a general theory of the viscosity of gases based on the relativistic Langevin equation (deduced from a relativistic Lagrangian) and nonaffine linear response theory. Th
Externí odkaz:
http://arxiv.org/abs/2406.18434
It is common knowledge that noble metals are excellent conductors but do not exhibit superconductivity. On the other hand, quantum confinement in thin films has been consistently shown to induce a significant enhancement of the superconducting critic
Externí odkaz:
http://arxiv.org/abs/2406.16621