visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

SWELLABLE COLLOIDAL PARTICLES ARE SWELL

2015.12.06 21:49

관리자 조회 수:4382

날짜 2015-12-09 14:00 
연사  
장소 E6-2, #1323 

SWELLABLE COLLOIDAL PARTICLES ARE SWELL


ABSTRACT
I will discuss soft matter experiments from my lab that explore fundamental questions about phase transition mechanisms and glasses. Briefly, soft materials deform easily when pushed, and some important examples include colloidal suspensions, emulsions, oil-water interfaces, polymer & surfactant solutions, liquid crystals, and mixtures thereof. Our recent work develops and takes advantage of a novel class of colloidal suspension composed of temperature-sensitive hydrogel particles; the temperature “knob” permits easy control of particle packing and simultaneous viewing by video microscopy [1]. These features, in turn, enable us to use colloidal crystals to answer fundamental questions about “how and where” crystal melting begins and about the mechanisms by which one crystal transforms to another during a solid-solid phase transition [2]. These features have also enabled us to critically explore open questions about disordered solids, e.g., how glasses rearrange internally when responding to mechanical stress [3]. After a broad introduction, I will describe these new experiments.
REFERENCES
[1] Yunker, P.J., Chen, K., Gratale, M.D., Lohr, M.A., Still, T., Yodh, A.G., Reports on
Progress in Physics 77, 056601 (Epub 2014).
[2] A.M. Alsayed, M.F. Islam, J. Zhang, P.J. Collings, A.G. Yodh, Science 309, 1207-1210 (2005); Y. Han, Y. Shokef, A. Alsayed, P. Yunker, T. C. Lubensky, A. G. Yodh, Nature 456,
898-903 (2008); Peng, Y., Wang, F., Wang, Z., Alsayed, A.M., Zhang, Z., Yodh, A.G., and
Han, Y., Nature Materials (Epub 2014).
[3] Chen, K., Ellenbroek, W.G., Zhang, Z.X., Chen, D.T.N., Yunker, P.J., Henkes, S., Brito, C., Dauchot, O., van Saarloos, W., Liu, A.J., and Yodh, A.G., Phys. Rev. Lett. 105, 025501 (2010); Chen, K., Manning, M.L., Yunker, P.J., Ellenbroek, W.G., Zhang, Z., Liu, A.J., and Yodh, A.G., Phys. Rev. Lett. 107, 108301 (2011); Still, T., Goodrich. C.P., Chen, K., Yunker, P.J., Schoenholz, S., Liu, A.J., and Yodh, A.G., Phys. Rev. E 89, (2014).

번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
590 2019-09-02 16:00    Fall 2019: Physics Colloquium file
589 2019-09-18 16:00    Fall 2019: Physics Seminar Serises file
588 2024-01-26 15:00    In-situ 4D-STEM studies on surface reconstruction and polarization switching of perovskite oxides
587 2020-09-24 09:00    (CAPP/IBS)Searching for Dark Matter with a Superconducting Qubit , Cryogenic Microwave Circuit Development at the NSTU file
586 2021-01-28 18:00    Quantum metamaterials: concept, theory, prototypes and possible applications file
585 2023-09-18 11:00    Magic polarisation trapping of polar molecules for tunable dipolar interactions file
» 2015-12-09 14:00    SWELLABLE COLLOIDAL PARTICLES ARE SWELL
583 2015-12-09 11:00    Functional Imaging & Monitoring of Brain & Breast with Diffuse Light
582 2020-09-28 17:30    KAIST Global Forum for Spin and Beyond(Fourth Forum) file
581 2024-03-28 11:00    Geometric characterization of thermoelectric performance of two-dimensional quadratic band-crossing semimetals
580 2023-01-12 16:00    Spin wavepackets in the Kagome ferromagnet Fe3Sn2: propagation and precursors
579 2021-04-19 19:00    Evidence of Electrical Switching in Antiferromagnets and Coherent Spin Pumping file
578 2017-12-14 15:00    Exploring the Universe via GWs in the era of multi-messenger astronomy
577 2019-10-25 15:00    Physics Seminar file
576 2024-11-21 11:00  Daniel L. Jafferis  3d Gravity and Tensor Model file
575 2023-10-04 16:00    [High-Energy Theory Seminar] Moving towards quantum technologies: the case of quantum batteries
574 2024-06-05 10:00    Moir\’e fractals in supermoir\’e structures
573 2016-12-12 13:30    “Possible symmetry in the phase diagrams of electron- & hole-doped cuprate high-Tc superconductors”
572 2016-04-06 15:30    Superconducting Quantum Interference Devices for Precision Detection
571 2016-04-05 16:00    A new impurity solver for multi-orbital systems: adaptive truncation of the Hilbert space