Crystal to crystal transformation in soft ionic microgels : Kinetics and the role of local mechanical susceptibilities

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Physical Review Materials. American Physical Society (APS). 2023, 7(8), L080401. eISSN 2475-9953. Available under: doi: https://doi.org/10.1103/PhysRevMaterials.7.L080401
Zusammenfassung

We report confocal microscopy experiments of electric-field-driven crystal-crystal transformations in microgel colloids with varying particle softness. The transformation kinetics are well described by phenomenological nucleation and growth theory. Using a spatial projection formalism, we determine local susceptibilities to affine shear deformation and nonaffine defect formation in the parent crystal. Curiously, the softer particles have lower shear strain susceptibility, while nonaffine susceptibility and phenomenological growth coefficients depend nonmonotonically on particle softness.

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ISO 690GANGULY, Saswati, Sofi NÖJD, Anand YETHIRAJ, Peter SCHURTENBERGER, Priti S. MOHANTY, 2023. Crystal to crystal transformation in soft ionic microgels : Kinetics and the role of local mechanical susceptibilities. In: Physical Review Materials. American Physical Society (APS). 2023, 7(8), L080401. eISSN 2475-9953. Available under: doi: https://doi.org/10.1103/PhysRevMaterials.7.L080401
BibTex
@article{Ganguly2023-08-28Cryst-67730,
  year={2023},
  doi={https://doi.org/10.1103/PhysRevMaterials.7.L080401},
  title={Crystal to crystal transformation in soft ionic microgels : Kinetics and the role of local mechanical susceptibilities},
  number={8},
  volume={7},
  journal={Physical Review Materials},
  author={Ganguly, Saswati and Nöjd, Sofi and Yethiraj, Anand and Schurtenberger, Peter and Mohanty, Priti S.},
  note={Article Number: L080401}
}
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