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Three-Dimensional Mapping of Single-Atom Magnetic Anisotropy.
- Source :
-
Nano Letters . Mar2015, Vol. 15 Issue 3, p1938-1942. 5p. - Publication Year :
- 2015
-
Abstract
- Magnetic anisotropy plays a key role in the magnetic stability and spin-related quantum phenomena of surface adatoms. It manifests as angular variations of the atom's magnetic properties. We measure the spin excitations of individual Fe atoms on a copper nitride surface with inelastic electron tunneling spectroscopy. Using a three-axis vector magnet we rotate the magnetic field and map out the resulting variations of the spin excitations. We quantitatively determine the three-dimensional distribution of the magnetic anisotropy of single Fe atoms by fitting the spin excitation spectra with a spin Hamiltonian. This experiment demonstrates the feasibility of fully mapping the vector magnetic properties of individual spins and characterizing complex three-dimensional magnetic systems. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MAGNETIC anisotropy
*NITRIDES
*QUANTUM theory
*IRON compounds
*MAGNETIC fields
Subjects
Details
- Language :
- English
- ISSN :
- 15306984
- Volume :
- 15
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Nano Letters
- Publication Type :
- Academic Journal
- Accession number :
- 101562060
- Full Text :
- https://doi.org/10.1021/nl504779p