期刊
FRONTIERS OF PHYSICS
卷 6, 期 1, 页码 109-123出版社
HIGHER EDUCATION PRESS
DOI: 10.1007/s11467-010-0102-y
关键词
jamming; amorphous systems; critical phenomena; glass transition
资金
- Department of Energy of the United States of America [DE-FG02-05ER46199, DE-FG02-03ER46088]
- Hong Kong Research Grants Council [CUHK 400708]
- University of Science and Technology of China
- U.S. Department of Energy (DOE) [DE-FG02-05ER46199, DE-FG02-03ER46088] Funding Source: U.S. Department of Energy (DOE)
Amorphous systems undergo the jamming transition when the density increases, temperature drops, or external shear stress decreases, as described by the jamming phase diagram which was proposed to unify different processes such as the glass transition, random close packing, and yielding under shear stress. At zero temperature and shear stress, the jamming transition occurs at a critical density at Point J. In this paper, we review recent studies of the material properties of marginally jammed solids and the glassy dynamics in the vicinity of Point J. As the only singular point in the jamming phase diagram, Point J exhibits special criticality in both mechanical and vibrational quantities. Dynamics approaching the glass transition in the vicinity of Point J show critical scalings, suggesting that the molecular glass transition and the colloidal glass transition are equivalent in the hard sphere limit. All these studies shed light on the long-standing puzzles of the glass transition and unusual properties of amorphous solids.
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