Jamming at Zero Temperature, Zero Friction, and Finite Applied Shear Stress

被引:31
作者
Ciamarra, Massimo Pica [1 ,2 ]
Coniglio, Antonio [2 ,3 ]
机构
[1] Univ Naples 2, CNISM, I-81031 Aversa, CE, Italy
[2] Univ Naples Federico 2, Dipartimento Sci Fis, I-80126 Naples, Italy
[3] INFN Udr Napoli, Naples, Italy
关键词
TRANSITION;
D O I
10.1103/PhysRevLett.103.235701
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Shear stress, as temperature, induces particle motion, and affects the jamming transition from a fluid to a disordered solid state. Here, we show that at finite shear stress, the jamming transition is characterized by the presence of hysteresis, as in a given range of control parameters a flowing or a jammed state can be found, depending on whether the system is prepared coming from the fluid or the jammed phase. At small shear stress, where the hysteresis is negligible, the jamming transition has a mixed first-order second-order character close to that found at the glass transition of thermal systems, with discontinuities in the asymptotic values of two time quantities such as the self-intermediate scattering function.
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页数:4
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