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Evidence item

The primary paper reports 1.36-Å silicon atomic double-slit fringes and uses their visibility to quantify correlated neighboring-atom vibrations. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 20309

Source: Atomic-scale double-slit interferometry with a focused electron probe · locator {} · excerpt hash sha256:f75bee89eee02c540d535247c9fdaf3b8c4be2f4b191435fc87cf6034916c1c6

Exact excerpt
Using scanning transmission electron microscopy (STEM), 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 Å. At finite temperature, these two atomic ‘slits’ vibrate strongly, imprinting their motion on the fringes. ... 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.

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