Answers are grounded in this paper and cite their sources.
Individual Fe atoms on a Cu(2)N/Cu(100) surface exhibit strong magnetic anisotropy due to the crystal field. We show that we can controllably enhance or reduce this anisotropy by adjusting the relative position of a second nearby Fe atom, with atomic precision, in a low-temperature scanning tunneling microscope. Local inelastic electron tunneling spectroscopy, combined with a qualitative first-principles model, reveal that the change in uniaxial anisotropy is driven by local strain due to the presence of the second Fe atom.
No takes yet. Share an insight, caveat, or question.
Bryant et al. (2013) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: