scanning tunneling micrograph of a sample containing triangulene quantum spin chains (IMAGE)

Swiss Federal Laboratories for Materials Science and Technology (EMPA)

scanning tunneling micrograph of a sample containing triangulene quantum spin chains

Caption

Left: Overview scanning tunneling micrograph of a sample containing triangulene quantum spin chains, where chains containing between two to seven triangulene units are highlighted. Right: High-resolution scanning tunneling micrograph of a ten unit-long spin chain, where the constituent triangulene units are clearly resolved. Additionally, the larger tunneling current over the terminal triangulene units that leads to their brighter appearance is due to spin-½ excitations at the chain termini. The chemical structure of triangulene is shown in the inset.

Credit

Empa

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No restrictions.

License

Public Domain

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