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Impact of jamming criticality on low-temperature anomalies in structural glasses
Impact of jamming criticality on low-temperature anomalies in structural glasses
- Source :
- Proceedings of the National Academy of Sciences of the United States of America, Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2019, 116 (28), pp.13768-13773. ⟨10.1073/pnas.1820360116⟩, Proceedings of the National Academy of Sciences
- Publication Year :
- 2019
- Publisher :
- HAL CCSD, 2019.
-
Abstract
- We present a novel mechanism for the anomalous behaviour of the specific heat in low-temperature amorphous solids. The analytic solution of a mean-field model belonging to the same universality class as high-dimensional glasses, the spherical perceptron, suggests that there exists a crossover temperature above which the specific heat scales linearly with temperature while below it a cubic scaling is displayed. This relies on two crucial features of the phase diagram: (i) The marginal stability of the free-energy landscape, which induces a gapless phase responsible for the emergence of a power-law scaling (ii) The vicinity of the classical jamming critical point, as the crossover temperature gets lowered when approaching it. This scenario arises from a direct study of the thermodynamics of the system in the quantum regime, where we show that, contrary to crystals, the Debye approximation does not hold.<br />Comment: 7 pages + 38 pages SI, 5 figures
- Subjects :
- Physics
[PHYS]Physics [physics]
Multidisciplinary
Condensed matter physics
Statistical Mechanics (cond-mat.stat-mech)
FOS: Physical sciences
Jamming
Disordered Systems and Neural Networks (cond-mat.dis-nn)
Renormalization group
Condensed Matter - Disordered Systems and Neural Networks
01 natural sciences
010305 fluids & plasmas
symbols.namesake
Critical point (thermodynamics)
Physical Sciences
0103 physical sciences
symbols
010306 general physics
Scaling
Debye model
Condensed Matter - Statistical Mechanics
Marginal stability
Phase diagram
Debye
Subjects
Details
- Language :
- English
- ISSN :
- 00278424 and 10916490
- Database :
- OpenAIRE
- Journal :
- Proceedings of the National Academy of Sciences of the United States of America, Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 2019, 116 (28), pp.13768-13773. ⟨10.1073/pnas.1820360116⟩, Proceedings of the National Academy of Sciences
- Accession number :
- edsair.doi.dedup.....f0737cfa1bae458f1cf94bf5b04b19cc
- Full Text :
- https://doi.org/10.1073/pnas.1820360116⟩