visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

SWELLABLE COLLOIDAL PARTICLES ARE SWELL

2015.12.06 21:49

관리자 조회 수:6099

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)
474 2023-06-15 16:00    [CAPP Seminar] Cryogenic electronics for ion traps file
473 2023-06-14 16:00    [CAPP seminar] EMC at CERN file
472 2023-06-14 16:00    [High-Energy Theory Seminar]Vertex algebras and extended operators in 4d N=2 SCFTs
471 2023-06-08 16:00    Thermal decoupling in high-Tc cuprate superconductors
470 2023-06-01 16:00    (광학분야 세미나)Quantum sensing using a squeezed light from hot Rb vapor
469 2023-06-01 16:00    Hall viscosity and topological phenomena
468 2023-05-31 16:00    [High-Energy Theory Seminar] Resurgence and complex Chern-Simons theory
467 2023-05-26 11:00    (응집물리 세미나)Spectral Analyses of Stochastic Charge Trapping in Oxide Heterostructures file
466 2023-05-22 13:00    Design & Development of Electrochemical Biosensors for the Detection of T2DM Biomarkers
465 2023-05-19 11:00    (응집물리 세미나)Dipole condensations in Tilted Bose-Hubbard Chains
464 2023-05-18 16:00    (광학분야 세미나)Dielectric metasurfaces for optimized optical system and spatial light modulators
463 2023-05-17 16:30    Detecting Hidden Photon Dark Matter via the Excitation of Qubits file
462 2023-05-17 14:00    Optical Response in the multilayer thin films
461 2023-05-15 16:00    Role of dark Higgs boson in DM physics and cosmology file
460 2023-05-12 11:00    (응집물리 세미나)Interlayer conductivity and plasmon in weakly coupled layered systems
459 2023-05-03 16:00    Probing microscopic origins of axions by the chiral magnetic effect
458 2023-04-28 11:00    Tkachenko wave: From the modern field theory viewpoint
457 2023-04-27 16:00    (광학분야 세미나)On-chip spectrometers based on CMOS image sensors
456 2023-04-27 11:00    Inverse Shapiro steps and coherent quantum phase slip in superconducting nanowires
455 2023-04-14 12:00    (응집물리 세미나)Exotic quantum phenomena in two-dimensional materials file