%A Fei Tang(唐菲), Lin-Ji Zhang(张林基), Feng-Liang Liu(刘峰良), Fei Sun(孙菲), Wen-Ge Yang(杨文革), Jun-Long Wang(王君龙), Xiu-Ru Liu(刘秀茹), Ru Shen(沈如) %T Pressure-induced solidifications of liquid sulfur below and above λ-transition %0 Journal Article %D 2016 %J Chin. Phys. B %R 10.1088/1674-1056/25/4/046102 %P 46102-046102 %V 25 %N 4 %U {https://cpb.iphy.ac.cn/CN/abstract/article_118501.shtml} %8 2016-04-05 %X Two kinds of glassy sulfurs are synthesized by the rapid compression method from liquid sulfur at temperatures below and above the λ-transition point. The glassy sulfur has different colors and transparencies, depending on temperature, which may inherit some structural information from the λ-transition. Raman spectrum studies of these samples show that a large fraction of polymeric chains exist in the glassy sulfur, even in the one solidified from T < Tλ. We find that a higher compression rate instead of a higher temperature of the parent liquid captures more polymeric chains. Pressure-induced glassy sulfur presents high thermal stability compared with temperature quenched glassy sulfur and could transform into liquid sulfur directly without crystallization through an abnormal exothermic melting course. High energy x-ray diffraction is utilized to study the local order of the pressure-induced glassy sulfur.