2015/11/05 by Markus Etzkorn, M. Etzkorn, Cyrus F. Hirjibehedin +18 · 15 citations
Chemistry · Mathematics · Physics and Astronomy · #Atomic physics #Chemistry #Condensed matter physics #Density functional theory #Excitation #Hamiltonian (control theory) #Magnetic circular dichroism #Magnetic moment #Magnetic properties of thin films #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Spectral line #Spectroscopy #Spin (aerodynamics) #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.92.184406
published in Physical Review B 92(18) (American Physical Society)
openalex publication_date 2015/11/05 · arxiv created 2015/11/20 · arxiv updated 2015/11/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on the magnetic properties of Fe and Co adatoms on a Cu2N/Cu(100)\ensuremath-c(2\ifmmode×\else\texttimes\fi2) surface investigated by x-ray magnetic dichroism measurements and density functional theory (DFT) calculations including the local coulomb interaction. We compare these results with properties formerly deduced from STM spin excitation spectroscopy (SES) performed on the individual adatoms. In particular we focus on the values of the local magnetic moments determined by XMCD compared to the expectation values derived from the description of the SES data. The angular dependence of the projected magnetic moments along the magnetic field, as measured by XMCD, can be understood on the basis of the SES Hamiltonian. In agreement with DFT, the XMCD measurements show large orbital contributions to the total magnetic moment for both magnetic adatoms.