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Bae, Sung Chul
Multiscale Optical Imaging Lab
Research Interests
  • Multiscale optical imaging, laser spectroscopy, laser microscopy, laser sensing, soft matter physics, surface and interfacial science, laser Matter Interaction

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How confined lubricants diffuse during shear

Cited 24 times inthomson ciCited 29 times inthomson ci
Title
How confined lubricants diffuse during shear
Author
Mukhopadhyay, ABae, Sung ChulZhao, JGranick, Steve
Issue Date
2004-12
Publisher
AMERICAN PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v.93, no.23, pp.236105
Abstract
The translational diffusion of a fluorescent dye embedded at a dilute concentration in a confined fluid was compared at rest and during shear. The fluid, octamethylcyclotetrasiloxane (OMCTS), was confined between step-free muscovite mica to thickness 3-4 layers. Fluorescence correlation spectroscopy showed that the time scales of intensity-intensity autocorrelation functions were essentially the same during shear and at rest, except they were faster during shear by a factor of 2 to 5. This dynamical probe of how liquids order in molecularly thin films fails to support the hypothesis that shear produced a melting transition.
URI
https://scholarworks.unist.ac.kr/handle/201301/7063
URL
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.93.236105
DOI
10.1103/PhysRevLett.93.236105
ISSN
0031-9007
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PHY_Journal Papers
BME_Journal Papers
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