Compression induced crystal-to-glass transition in soft colloidal solids  

作　　者：Li Chen Xiunan Yang Mingcheng Yang Chenhong Wang Ke Chen 

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics and Key Laboratory of Soft Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]University of Chinese Academy of Sciences,Bejing 100049,China [3]Cygnus Biosciences Co.,Ltd,Beijing 100176,China [4]Beijing Tide Pharmaceutical Co,Ltd,Beijing 100176,China [5]Songshan Lake Materials Laboratory,Dongguan 523808,China

出　　处：《National Science Open》2023年第3期55-63,共9页国家科学进展（英文）

基　　金：supported by the National Natural Science Foundation of China(11874395 and 12174434);the Strategic Priority Research Program of Chinese Academy of Sciences(XDB3300000).|。

摘　　要：Using colloidal particles with different thermosensitivities,we observe the transition from a crystalline solid to a dis-ordered glass by tuning the size mismatch of the constituent particles in quasi-two-dimensional configurations.The transition is clearly identifiable by the correlation functions of the orientational order parameters and its susceptibilities.Different from typical order-to-disorder transitions such as melting,where the underlying mechanism involves the diffusion of defects,the disordered phase in the crystal-to-glass transition grows via a nucleation process.The disordered clusters grow in size as the particle mismatch increases,and eventually percolate the whole system,which signifies the qualitative change from an ordered crystal to a disordered glass.

关 键 词：crystal-to-glass transtion PERCOLATION colloidal solids 

分 类 号：O648.1[理学—物理化学]