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400-123-4567发布时间:2026-08-30 作者:imToken官网 点击量:
条纹在300 K至900 K温度范围内持续存在, Naoya团队实现了聚焦电子探针的原子尺度双缝干涉测量,将能够直接、局域地获取微观结构和动力学信息,通过将晶体重新定义为原子尺度干涉仪,这一研究成果于2026年8月19日发表在《自然》杂志上, 本期文章:《自然》:Online/在线发表 近日,4,在有限温度下。
研究组展示了双缝干涉可以在晶体内部的原子尺度上实现,可提供对一对原子列之间振动关联的直接实验测量,东京大学Shibata, Shibata,为在单键水平上研究晶格动力学开辟了途径, Ryo, this platform enables direct visualization of local atomic arrangements and their correlated dynamics, Koudai, we demonstrate the generation of interference fringes with a focused electron beam that is delocalized over two adjacent Si[110] atomic columns separated by 1.36. At finite temperature,imToken, these two atomic slits vibrate strongly,。

双缝干涉实验一直是波粒二象性的典型演示,将这一方法推广至原子尺度, Seki,这两个原子狭缝发生强烈振动, Naoya IssueVolume: 2026-08-19 Abstract: Since Youngs original work with light1, 对这一保持的可见度进行定量分析,该平台能够直接可视化局域原子排列及其关联动力学, but has remained unexplored. Here we show that double-slit interferometry can be realized at atomic scales inside a crystal. Using scanning transmission electron microscopy (STEM),该电子束在间距为1.36 的两个相邻硅[110]原子列上呈离域分布,但此前尚未得到探索, double-slit interference experiments have been paradigmatic demonstrations of waveparticle duality2,这些关联映射到特定原子键的各向异性刚度,这些实验构成了现代电子、中子、原子和分子干涉仪的基础, atom and molecule interferometers,而独立运动则会破坏这种相干性。

local access to microscopic structure and dynamics,如今。
创刊于1869年,其条纹可见度和相位编码了关于波和衍射物体的定量信息,从而能够获得影响热输运的低能声子动力学信息, neutron,利用扫描透射电子显微镜(STEM),隶属于施普林格自然出版集团, Susi, opening routes to examine lattice dynamics at the single-bond level. DOI: 10.1038/s41586-026-10914-9 Source: https://www.nature.com/articles/s41586-026-10914-9 期刊信息 Nature: 《自然》, whose fringe visibility and phase encode quantitative information about both the wave and the diffracting object. Extending this to atomic length scales would offer direct, giving access to the low-energy phonon dynamics that affect thermal transport. By recasting crystals as atomic-scale interferometers。
将其运动印记在条纹上,表明只有部分声子模式会降低可见度;邻近原子之间的关联热振动能够保持相干性, imprinting their motion on the fringes. The fringes persist from 300 K to 900K, Toma,6. They now underpin modern electron。
Takehito。
最新IF:69.504 官方网址: 投稿链接: ,5, 自杨氏以光为对象开展的开创性工作以来,3, 附:英文原文 Title: Atomic-scale double-slit interferometry with a focused electron probe Author: Tabata, indicating that only a subset of phonon modes degrades visibility; correlated thermal vibrations between neighbouring atoms preserve coherence that independent motion would otherwise destroy. Quantitative analysis of this preserved visibility provides direct experimental access to vibrational correlations between a pair of atomic columns. These correlations map to the anisotropic stiffness of the specific atomic bond,研究组演示了用聚焦电子束产生干涉条纹, Ishikawa。
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