TY - JOUR
T1 - Measuring the coordination number and entropy of a 3D jammed emulsion packing by confocal microscopy
AU - Brujić, Jasna
AU - Song, Chaoming
AU - Wang, Ping
AU - Briscoe, Christopher
AU - Marty, Guillaume
AU - Makse, Hernán A.
PY - 2007/6/15
Y1 - 2007/6/15
N2 - Jammed matter is by definition impenetrable to light, such that little is known about the geometry of jammed systems. Using confocal microscopy to image an emulsion in 3D, we first explain the origin of the enhanced fluorescence at the droplet contacts and then determine the contact network inside the model frictionless system. This enables the experimental determination of the average coordination number Z which agrees with the isostatic predicted value of Z 6. Furthermore, we calculate the entropy of the packing from the network of contacts.
AB - Jammed matter is by definition impenetrable to light, such that little is known about the geometry of jammed systems. Using confocal microscopy to image an emulsion in 3D, we first explain the origin of the enhanced fluorescence at the droplet contacts and then determine the contact network inside the model frictionless system. This enables the experimental determination of the average coordination number Z which agrees with the isostatic predicted value of Z 6. Furthermore, we calculate the entropy of the packing from the network of contacts.
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U2 - 10.1103/PhysRevLett.98.248001
DO - 10.1103/PhysRevLett.98.248001
M3 - Article
C2 - 17677997
AN - SCOPUS:34547319610
SN - 0031-9007
VL - 98
JO - Physical Review Letters
JF - Physical Review Letters
IS - 24
M1 - 248001
ER -