由一级相变的动力学阻滞形成的磁性玻璃
统计力学
2012-07-31 v3 软凝聚态物质
摘要
金属玻璃是通过急冷形成的;这确保了在凝固潜热被提取之前,原子运动已被阻滞。玻璃被定义为具有动力学阻滞的更高无序度的亚稳态。动力学阻滞是玻璃的决定性属性,而非例如非晶硅中的结构无序[1]。最近识别出的“磁性玻璃”具有结构以及磁性长程有序,但表现出与结构玻璃相同的弛豫和比热[1]。在这些材料中,Tc 和 Tg 的值很容易通过改变磁场 H 来改变,从而允许人们从金属玻璃转变到类似玻璃形成体的情景。
引用
@article{arxiv.1004.3116,
title = {Magnetic Glass formed by kinetic arrest of first order phase transitions},
author = {Praveen Chaddah and Alok Banerjee},
journal= {arXiv preprint arXiv:1004.3116},
year = {2012}
}
备注
Last paragraph of v2 is modified and expanded to address how studies on magnetic glass can help understand the physics of formation of structural glass, as distinct from jamming