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学术报告:Five-fold Symmetry in Colloidal Systems: Glass Transition versus Crystallisation

日期: 2017-09-05     阅读次数:50

报告题目: Five-fold Symmetry in Colloidal Systems: Glass Transition versus Crystallisation

报告人:  Prof. Christopher P. Royall, H. H. Wills Physics Laboratory, University of Bristol, UK

报告时间:97日上午10

报告地点:物理科技楼245

报告摘要:

That fivefold symmetry should play a crucial role in the non-equilibrium behaviour of condensed matter was proposed in the 1950s. Six decades later, the basic mechanism of the solidification of liquids remains unexplained, either in the case that the material crystallises, or that it forms an amorphous solid, a glass. We will explore the implications of fivefold symmetry in the solidification of liquids and discuss two recent developments.

参考文献:

1.     From glass formation to icosahedral ordering by curving three-dimensional space, Phys. Rev. Lett. 118 215501 (2017).

2.     The role of fivefold symmetry in suppressing crystallisation, Nature Comms. 7 13225 (2016).

3.     Transmission of torque at the nanoscale, Nature Physics 12 98–103 (2016).

4.     The role of structure in dynamical arrest”, Phys. Rep. 560 1-75 (2015).

5.     Probing Colloidal Gels at Multiple Length Scales: The Role of Hydrodynamics, Phys. Rev. Lett. 114 258302 (2015)

6.     Mutual information reveals multiple structural relaxation mechanisms in a model glassformer, Nature Comms. 6 6089 (2015).

7.     Information-theoretic measurements of coupling between structure and dynamics in glass formers, Phys. Rev. Lett. 113 095703 (2014).

8.     Direct measurement of osmotic pressure via adaptive confinement of quasi hard disc colloids, Nature Comms. 4, 2555, (2013). 



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