中国物理B ›› 2016, Vol. 25 ›› Issue (4): 46102-046102.doi: 10.1088/1674-1056/25/4/046102
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
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)
Fei Tang(唐菲)1, Lin-Ji Zhang(张林基)1, Feng-Liang Liu(刘峰良)2, Fei Sun(孙菲)2, Wen-Ge Yang(杨文革)2, Jun-Long Wang(王君龙)2, Xiu-Ru Liu(刘秀茹)3, Ru Shen(沈如)1
摘要: 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.
中图分类号: (Disordered solids)