发表机构
University of Maryland; University of Florida（马里兰大学; 佛罗里达大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究通过Hartree-Fock与经典分子动力学模拟，揭示淬火无序削弱二维电子固体的晶体相干性，并稳定无定形固体抵抗热重排。
AI 中文摘要
我们利用Hartree-Fock理论和经典分子动力学研究了淬火无序对二维电子固体的影响。无序的增强会削弱晶体相关性，使结构因子变宽，并将测得的相干长度降低至接近原始晶格间距。这一演化过程与Imry-Ma和Larkin图像一致：随机钉扎在足够长的尺度上破坏平移有序性，且更强的无序会缩短晶体组织存续的距离。经典模拟进一步表明，即使在晶体有序性消失之后，更强的钉扎也会提高粒子重排所需的温度。因此，无序在抑制结构相干性的同时，稳定了无定形固体，使其抵抗热重排。
英文摘要
We investigate the effects of quenched disorder on two-dimensional electron solids using Hartree-Fock theory and classical molecular dynamics. Increasing disorder weakens crystalline correlations, broadens the structure factor, and reduces the measured coherence length toward the pristine lattice spacing. This evolution is consistent with the Imry-Ma and Larkin picture: random pinning disrupts translational order on sufficiently long scales, and stronger disorder reduces the distance over which crystalline organization survives. Classical simulations further show that stronger pinning raises the temperature for particle rearrangement even after crystalline order has disappeared. Disorder thus suppresses structural coherence while stabilizing an amorphous solid against thermal rearrangement.
Comments20 pages, 15 figures
