Dr. Eric R. Weeks

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  www.azonano.com/news.asp?NewsID=13097 - [Cached Version]
  Published on: 8/11/2009    Last Visited: 10/3/2009  

  "Imagine you're a water molecule in a glass of ice water, and you're floating right on the boundary of the ice and the water," proposes Emory University physicist Eric Weeks. "So how do you know if you're a solid or a liquid?"
  
  "Imagine you
  
  "Imagine you're a water molecule in a glass of ice water, and you're floating right on the boundary of the ice and the water," proposes Emory University physicist Eric Weeks.
  ...
  "The theory that surface waves move along the crystal/liquid boundary - the intrinsic interface - dates back to 1965 and is well established," says Weeks, associate professor of physics. "What we've done is found a way to take a picture of the intrinsic interface, measure it, and show how it fluctuates over time."
  
  The visual evidence shows that the fuzzy region between the two states is extremely narrow, Weeks says. "The transition from completely organized to completely disorganized goes very quickly, spatially. To see the transition, and hear Weeks explain the process, visit: http://esciencecommons.blogspot.com/2009/08/crystal-liquid-interface-visibl
  e-for.html
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  "Water molecules are too small too study while they are fluctuating," Weeks explains.
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  "You can watch as the boundary fluctuates," Weeks says.
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  Better understanding of the crystal/liquid interface could have industrial applications, such as investigating the use of colloidal crystals as optical switches, Weeks says.
  
  Weeks is used to working in fuzzy territory. He has devoted most of his career to probing the mysteries of substances that cannot be pinned down as a solid, liquid or gas.

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  www.rdmag.com/News/2009/08/General-Sciences-Physicists- - [Cached Version]
  Published on: 8/11/2009    Last Visited: 8/12/2009  

  "Imagine you're a water molecule in a glass of ice water, and you're floating right on the boundary of the ice and the water," proposes Emory University physicist Eric Weeks.
  ...
  Credit: Eric Weeks Lab/Emory University
  
  "The theory that surface waves move along the crystal/liquid boundaryâ€"the intrinsic interfaceâ€"dates back to 1965 and is well established," says Weeks, associate professor of physics. "What we've done is found a way to take a picture of the intrinsic interface, measure it, and show how it fluctuates over time."
  
  The visual evidence shows that the fuzzy region between the two states is extremely narrow, Weeks says.
  ...
  "Water molecules are too small too study while they are fluctuating," Weeks explains.
  ...
  "You can watch as the boundary fluctuates," Weeks says.
  ...
  Better understanding of the crystal/liquid interface could have industrial applications, such as investigating the use of colloidal crystals as optical switches, Weeks says.
  
  Weeks is used to working in fuzzy territory. He has devoted most of his career to probing the mysteries of substances that cannot be pinned down as a solid, liquid or gas.

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  focus.aps.org/story/v20/st4 - [Cached Version]
  Published on: 7/13/2007    Last Visited: 7/30/2007  

  To further explore the transition, Eric Weeks of Emory University in Atlanta and his colleagues studied a particle suspension that was enclosed between slightly angled rigid plates that formed a thin, wedge-shaped container.The spacing between the plates varied from nearly zero to about 100 microns.When the group tracked the 3-D motion of the particles over several hours, a clear pattern emerged: the particles moved more slowly where the plates were closer together, even though many particles easily fit between them."In other words, confinement induces glassy behavior," says Weeks.When the researchers increased the particle concentration, particle motion was suppressed at a larger spacing, although the team could not go far enough to see the complete rigidity of a glass.
  
  The results show that as particle density increases, the mixture generates larger and larger clusters of particles, according to Weeks and his colleagues.
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  Carolyn R. Nugent, Kazem V. Edmond, Hetal N. Patel, and Eric R. Weeks

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  www.eurekalert.org/pub_releases/2007-08/eu-epo080907.ph - [Cached Version]
  Published on: 8/9/2007    Last Visited: 8/10/2007  

  When most people look at a window, they see solid panes of glass, but for decades, physicists have pondered the mysteries of window glass: Is glass a solid, or merely an extremely slow moving liquid" An Emory University research team led by physicist Eric Weeks has yielded another clue in the glass puzzle, demonstrating that, unlike liquids, glasses aren't comfortable in confined spaces.
  
  The Emory team's findings are reported in the paper "Colloidal glass transition observed in confinement," published in the Physical Review Letters July 13.The Emory research adds to the evidence that some kind of underlying structure is involved in glass transition, Weeks says."This provides a simple framework for looking at other questions about what is really changing during the transition."
  
  Weeks has devoted his career to probing the mysteries of "squishy" substances that cannot be pinned down as a solid or liquid.
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  "One idea for why glass gets so viscous is that there might be some hidden structure," says Weeks, associate professor of physics.
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  "The ability to take microscopy movies has greatly improved during the past five to 10 years," Weeks says.
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  "It's like cars and traffic jams," Weeks says.
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  "Our work suggests glasses are solid-like because these groups can't move when the sample chamber is thinner than the typical size of these groups," Weeks says.

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  www.emorywheel.com/detail.php?n=24663 - [Cached Version]
  Published on: 11/9/2007    Last Visited: 11/13/2007  

  This approach is different from previous ones that were geared toward GER evaluation, but Paul is pushing for changes, said Eric Weeks, associate professor of physics and the physics delegate to the task force.

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  2006 MRS Spring Meeting - Call for Papers/Symposium W - [Cached Version]
  Last Visited: 9/14/2006  

  Invited speakers include: Simon Biggs (Univ. of Leeds, United Kingdom), Paul Braun (Univ. of Illinois, Urbana-Champaign), Franck Caruso (Univ. of Melbourne, Australia), Lenore Dai (Texas Tech Univ.), Janet Elliott (Univ. of Alberta, Canada), Eric Furst (Univ. of Delaware), Sharon Glotzer (Univ. of Michigan), Taeghwan Hyeon (Seoul National Univ., Korea), Akihiko Kondo (Kobe Univ., Japan), Peter Kralchevsky (Univ. Sophia, Bulgaria), David Pine (New York Univ.), Bill Russel (Princeton Univ.), Mike Solomon (Univ. of Michigan), Pat Spicer (Proctor & Gamble), Tadao Sugimoto (Tohoku Univ., Japan), Alfons van Blaaderen (Utrecht Univ., The Netherlands), Orlin Velev (North Carolina State Univ.), Eric Weeks (Emory Univ.), Dave Weitz (Harvard Univ.), Pierre Wiltzius (Univ. of Illinois, Urbana-Champaign), Ryoichi Yamamoto (Kyoto Univ., Japan), and Chip Zukoski (Univ. of Illinois, Urbana-Champaign).

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  A Window into Glass Formation | Physical Review Focus - [Cached Version]
  Published on: 7/13/2007    Last Visited: 3/31/2009  

  To further explore the transition, Eric Weeks of Emory University in Atlanta and his colleagues studied a particle suspension that was enclosed between slightly angled rigid plates that formed a thin, wedge-shaped container. The spacing between the plates varied from nearly zero to about 100 microns. When the group tracked the 3-D motion of the particles over several hours, a clear pattern emerged: the particles moved more slowly where the plates were closer together, even though many particles easily fit between them. "In other words, confinement induces glassy behavior," says Weeks. When the researchers increased the particle concentration, particle motion was suppressed at a larger spacing, although the team could not go far enough to see the complete rigidity of a glass.
  
  The results show that as particle density increases, the mixture generates larger and larger clusters of particles, according to Weeks and his colleagues.
  ...
  Carolyn R. Nugent, Kazem V. Edmond, Hetal N. Patel, and Eric R. Weeks

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  EurekAlert! - Awards - [Cached Version]
  Published on: 6/15/2004    Last Visited: 6/15/2004  

  Eric Weeks, an Emory University assistant professor of physics, is the recipient of a 2002 Presidential Early Career Awards for Scientists and Engineers, the nation's highest honor for professionals at the outset of their independent research careers.The awards were announced May 4 by the White House, and Weeks joined 57 other researchers in a ceremony presided over by John H. Marburger III, science advisor to President George W. Bush and director of the White House Office of Science and Technology Policy.

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  FiO 2006/LS XXII > Program > Short Courses - [Cached Version]
  Published on: 5/25/2005    Last Visited: 10/23/2006  

  Using Confocal Microscopy to Study the Colloidal Glass Transition, Eric Weeks, Emory Univ., USA

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  Georgia Wallyball - [Cached Version]
  Published on: 3/15/2006    Last Visited: 9/9/2007  

  Eric Weeks

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