玻璃态流体中的无热激活
软凝聚态物质
2021-04-13 v3
摘要
本文提出了在适度辐照下 SiOx 纳米线中出乎意料的高流动性机制，该高流动性归因于辐照诱导空穴的长寿命，其源于小极化子的形成。辐照中产生的空穴可具有长寿命，并在空间上局域化，这种成键电子的缺失可抑制网络发生 Pachner 移动的能垒（无热激活效应）。系统的原子尺度动力学由声子与局域构型的相互作用提出，随后通过相应随机动力学方程的通过率研究了激活效应，计算显示 Pachner 移动的时间间隔对激活寿命呈指数依赖，此外，局域构型时间与流体黏度之间的联系表明黏度对无热激活寿命具有强敏感性，该机制将连同导体对材料的钝化效应一起，对出乎意料的高流动性给出有效解释。
引用
@article{arxiv.2102.09394,
title = {Athermal Activation in Glassy Fluid},
author = {Yuchen Zheng},
journal= {arXiv preprint arXiv:2102.09394},
year = {2021}
}
备注
The content in the uploaded online manuscript is unable to include the work in collaboration with the other associated researchers and thus is incomplete. In addition, the manuscript of current draft is badly written. Therefore, I would like to claim that the uploaded manuscript should be regarded as a very early draft and should not be published or withdrawn