Details

Autor(en) / Beteiligte

• Bryant, B
• Spinelli, A
• Wagenaar, J J T
• Gerrits, M
• Otte, A F

Titel

Local control of single atom magnetocrystalline anisotropy

Ist Teil von

• Physical review letters, 2013-09, Vol.111 (12), p.127203-127203, Article 127203

Ort / Verlag

United States

Erscheinungsjahr

2013

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• 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.