Data for Weeks et al. (2000), and Courtland & Weeks (2003)

Data on monodisperse colloids: both equilibrated supercooled colloids liquids and non-equilibrated glasses

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Important note for all data sets: Some particles may not exist at all times, but the tracking program has identified them as likely the same particle and thus with a continuous identity. However, it is known that occasionally the tracking program makes mistakes with this.

The first six data sets were studied in:

"Three-dimensional direct imaging of structural relaxation near the colloidal glass transition"
ER Weeks, JC Crocker, AC Levitt, A Schofield, & DA Weitz, Science 287, 627 (2000).
- Abstract / PDF / web page related to this work
- Publicity: Physics Web article
- This paper is the one that should be cited as the source of the data
"Subdiffusion and the cage effect studied near the colloidal glass transition"
ER Weeks & DA Weitz, Chemical Physics 284, 361 (2002).
- Abstract / PDF / cond-mat/0111073
"Properties of cage rearrangements observed near the colloidal glass transition"
ER Weeks & DA Weitz, Phys. Rev. Lett. 89, 095704 (2002).
- Abstract / PDF /
"Short and long range correlated motion observed in colloidal glasses and liquids"
ER Weeks, JC Crocker, DA Weitz, J. Phys.: Cond. Mat. 19, 205131 (2007)
- Abstract / PDF / web page slightly related to this work / cond-mat/0610195 / Journal webpage
"Experimental verification of rapid, sporadic particle motions by direct imaging of glassy colloidal systems"
JA Rodriguez Fris, GA Appignanesi, & ER Weeks, Phys. Rev. Lett. 107, 065704 (2011).
- Abstract / PDF / arXiv:1103.1094 / journal

The 7th data set was taken at the same time as the first six, but was only used in our 2007 paper. The last four data sets were studied in:

"Direct visualization of ageing in colloidal glasses"
RE Courtland & ER Weeks, J Phys: Cond Mat 15, S359-S365 (2003)
- Abstract / PDF / web page about this work / cond-mat/0209148
- This paper is the one that should be cited as the source of the data
"Invariance of structure in an aging colloidal glass"
GC Cianci, RE Courtland, & ER Weeks, AIP Conf. Proc. 832: Flow Dynamics: The Second International Conference on Flow Dynamics, eds. M Tokuyama & S Maruyama, pp. 21-25 (2006).
- Abstract / PDF / web page about this work / cond-mat/0511301 / copyright / AIP article link
"Correlations of structure and dynamics in an aging colloidal glass"
GC Cianci, RE Courtland, & ER Weeks, Solid State Comm. 139, 599-604 (2006)
- Abstract / PDF / web page about this work / cond-mat/0512698 / Journal webpage

Format of data: These are all textfiles with five columns. The columns are (x,y,z,t,ID). The (x,y,z) data are in microns. Each particle has a unique ID number assigned to it. Time t is an integer; to convert to seconds, multiply by the time step listed in the tables describing each data set.

The volume fraction is approximate, despite the three digits of accuracy listed for some of them. For the last four data sets, the volume fraction is between 0.58 and 0.63.

Filename volume
fraction time step Comments Figure usage
t20156q.txt.gz 0.459 10 s (supercooled liquid; eventually crystallizes) In the papers this is the phi=0.46 data set. Fig. 2 in Rodriguez Fris et al. 2011.
t19813q.txt.gz 0.517 18 s (supercooled liquid; eventually crystallizes) In the papers this is the phi=0.52 data set
t19823q.txt.gz 0.528 60 s (supercooled liquid; eventually crystallizes) This is the phi=0.53 data in the 2000 Science paper. With the benefit of hindsight, I think the reason the plateau in the MSD is higher for this experiment is likely that the noise floor is higher. See Poon, Weeks, and Royall for comments about this type of problem (Sec. 3.3.2 in particular).
t19603q.txt.gz 0.562 18 s (supercooled liquid; eventually crystallizes) phi = 0.56 data set used in many figures. Figs. 1,3,4 in Rodriguez Fris et al. 2011.
t19607i.txt.gz 0.596 120 s (glass, after a long period of aging) In the papers this is the phi=0.60 data set
t19615i.txt.gz 0.611 120 s (glass, after a long period of aging) In the papers this is the phi=0.61 data set
t19508i.txt in zip file 0.617 120 s (glass, after a long period of aging) This was only used in Weeks, Crocker, & Weitz 2007, as the phi=0.62 data set. The data were taken at the same time as the other data in the Science '00 paper.
t31108q.txt.gz glass 20 s stirred at t = -15 frames Aging, but not used for figures
t31248b.txt.gz glass 20 s stirred at t = -10 frames Primary data set for figures of Courtland & Weeks 2003
t31006.txt.gz glass 20 s stirred close to t=0 (plus or minus 10) Aging, but not used for figures
t31306.txt.gz glass 20 s stirred close to t=0 (plus or minus 10) Aging, but not used for figures

Filename	volume fraction	time step	Comments	Figure usage
t20156q.txt.gz	0.459	10 s	(supercooled liquid; eventually crystallizes)	In the papers this is the phi=0.46 data set. Fig. 2 in Rodriguez Fris et al. 2011.
t19813q.txt.gz	0.517	18 s	(supercooled liquid; eventually crystallizes)	In the papers this is the phi=0.52 data set
t19823q.txt.gz	0.528	60 s	(supercooled liquid; eventually crystallizes)	This is the phi=0.53 data in the 2000 Science paper. With the benefit of hindsight, I think the reason the plateau in the MSD is higher for this experiment is likely that the noise floor is higher. See Poon, Weeks, and Royall for comments about this type of problem (Sec. 3.3.2 in particular).
t19603q.txt.gz	0.562	18 s	(supercooled liquid; eventually crystallizes)	phi = 0.56 data set used in many figures. Figs. 1,3,4 in Rodriguez Fris et al. 2011.
t19607i.txt.gz	0.596	120 s	(glass, after a long period of aging)	In the papers this is the phi=0.60 data set
t19615i.txt.gz	0.611	120 s	(glass, after a long period of aging)	In the papers this is the phi=0.61 data set
t19508i.txt in zip file	0.617	120 s	(glass, after a long period of aging)	This was only used in Weeks, Crocker, & Weitz 2007, as the phi=0.62 data set. The data were taken at the same time as the other data in the Science '00 paper.
t31108q.txt.gz	glass	20 s	stirred at t = -15 frames	Aging, but not used for figures
t31248b.txt.gz	glass	20 s	stirred at t = -10 frames	Primary data set for figures of Courtland & Weeks 2003
t31006.txt.gz	glass	20 s	stirred close to t=0 (plus or minus 10)	Aging, but not used for figures
t31306.txt.gz	glass	20 s	stirred close to t=0 (plus or minus 10)	Aging, but not used for figures

The particle radius for all data sets is 1.18 microns.

The first six data sets are the ones used in our Science '00 paper on dynamical heterogeneities. The last four were used in our J Phys: Cond Mat '03 paper on aging. In particular t31248b.txt was the primary data set for the JPCM paper.

MSD data

Format of data: These are all textfiles with two columns: [dt (s), dx^2 (microns^2]. These are the data shown in our 2002 Chem. Phys. paper, Fig. 1(a).

msd46-2d.txt -- phi=0.46 data, same sample as 20156 file
msd46-3d.txt -- phi=0.46 data, directly calculated from the 20156 file above
msd52-2d.txt -- phi=0.52 data, same sample as 19813 file
msd52-3d.txt -- phi=0.52 data, directly calculated from the 19813 file above
msd56-2d.txt -- phi=0.56 data, same sample as 19603 file
msd56-3d.txt -- phi=0.56 data, directly calculated from the 19603 file above