2026 / Metrology & trials

Interfacial heavy fermion formation in a two-dimensional Kondo lattice YbCu2 on Cu(111) substrate

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SCOPED EVIDENCE NOTE

What this source contributes.

Spectroscopy supports hybridization between substrate conduction states and Yb orbitals; this is a fundamental electronic result. Interfacial and intralayer heavy-fermion states distinguished. Limit: No water exposure, droplet mass or Weatherhill application established. The cited coherence temperature concerns the intralayer 2D state; it is not a measured universal cutoff for the interface. Intralayer coherence temperature; interfacial temperature dependence differs. Limit: Interfacial transition temperature not assigned here.

Scope of our check
selected main text and supplement. Selected Results and Figs. 2–4 text/captions; Methods: sample preparation and experiments. Supplementary Note 5 and rendered Fig. S5 inspected. Raw datasets and a complete supplementary review are outstanding. Review date: 2026-10-13. AI-assisted source check; not independent replication.

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This is a bounded reading note. It is not independent replication, a full systematic review or an endorsement of every conclusion in the paper.

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Bibliographic provenance

Verified 2026-10-13 against the publisher-deposited Crossref metadata. Publication dates retain the precision supplied by the publisher. Metadata may reflect digital republication; it is not always the earliest historical publication date.

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