This title appears in the Scientific Report :
2018
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.120.078003 in citations.
Please use the identifier: http://hdl.handle.net/2128/17949 in citations.
Crystal-to-Crystal Transition of Ultrasoft Colloids under Shear
Crystal-to-Crystal Transition of Ultrasoft Colloids under Shear
Ultrasoft colloids typically do not spontaneously crystallize, but rather vitrify, at high concentrations. Combining in situ rheo–small-angle-neutron-scattering experiments and numerical simulations we show that shear facilitates crystallization of colloidal star polymers in the vicinity of their gl...
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Personal Name(s): | Ruiz-Franco, J. |
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Marakis, J. / Gnan, N. / Kohlbrecher, J. / Gauthier, M. / Lettinga, M.P. / Vlassopoulos, D. (Corresponding author) / Zaccarelli, E. (Corresponding author) | |
Contributing Institute: |
Weiche Materie; ICS-3 |
Published in: | Physical review letters, 120 (2018) 7, S. 078003 |
Imprint: |
College Park, Md.
APS
2018
|
DOI: |
10.1103/PhysRevLett.120.078003 |
PubMed ID: |
29542977 |
Document Type: |
Journal Article |
Research Program: |
Functional Macromolecules and Complexes |
Link: |
OpenAccess OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/17949 in citations.
Ultrasoft colloids typically do not spontaneously crystallize, but rather vitrify, at high concentrations. Combining in situ rheo–small-angle-neutron-scattering experiments and numerical simulations we show that shear facilitates crystallization of colloidal star polymers in the vicinity of their glass transition. With increasing shear rate well beyond rheological yielding, a transition is found from an initial bcc-dominated structure to an fcc-dominated one. This crystal-to-crystal transition is not accompanied by intermediate melting but occurs via a sudden reorganization of the crystal structure. Our results provide a new avenue to tailor colloidal crystallization and the crystal-to-crystal transition at the molecular level by coupling softness and shear. |