Spin coupling in engineered atomic structures

Cyrus F. Hirjibehedin, Christopher P. Lutz, Andreas J. Heinrich

Research output: Contribution to journalArticlepeer-review

615 Scopus citations

Abstract

We used a scanning tunneling microscope to probe the interactions between spins in individual atomic-scale magnetic structures. Linear chains of 1 to 10 manganese atoms were assembled one atom at a time on a thin insulating layer, and the spin excitation spectra of these structures were measured with inelastic electron tunneling spectroscopy. We observed excitations of the coupled atomic spins that can change both the total spin and its orientation. Comparison with a model spininteraction Hamiltonian yielded the collective spin configuration and the strength of the coupling between the atomic spins.

Original languageEnglish
Pages (from-to)1021-1024
Number of pages4
JournalScience
Volume312
Issue number5776
DOIs
StatePublished - 19 May 2006

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