TY  - JOUR
AU  - Singha, Aparajita
AU  - Donati, Fabio
AU  - Natterer, Fabian Donat
AU  - Wäckerlin, Christian
AU  - Stavrić, Srđan
AU  - Popović, Zoran S.
AU  - Šljivančanin, Željko
AU  - Patthey, Francois
AU  - Brune, Harald
PY  - 2018
UR  - https://link.aps.org/doi/10.1103/PhysRevLett.121.257202
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8012
AB  - We report on the magnetic properties of HoCo dimers as a model system for the smallest intermetallic compound of a lanthanide and a transition metal atom. The dimers are adsorbed on ultrathin MgO(100) films grown on Ag(100). New for 4f elements, we detect inelastic excitations with scanning tunneling spectroscopy and prove their magnetic origin by applying an external magnetic field. In combination with density functional theory and spin Hamiltonian analysis, we determine the magnetic level distribution, as well as sign and magnitude of the exchange interaction between the two atoms. In contrast to typical 4f-3d bulk compounds, we find ferromagnetic coupling in the dimer. © 2018 American Physical Society.
T2  - Physical Review Letters
T1  - Spin Excitations in a 4f−3d Heterodimer on MgO
VL  - 121
IS  - 25
SP  - 257202
DO  - 10.1103/PhysRevLett.121.257202
ER  - 

@article{
author = "Singha, Aparajita and Donati, Fabio and Natterer, Fabian Donat and Wäckerlin, Christian and Stavrić, Srđan and Popović, Zoran S. and Šljivančanin, Željko and Patthey, Francois and Brune, Harald",
year = "2018",
abstract = "We report on the magnetic properties of HoCo dimers as a model system for the smallest intermetallic compound of a lanthanide and a transition metal atom. The dimers are adsorbed on ultrathin MgO(100) films grown on Ag(100). New for 4f elements, we detect inelastic excitations with scanning tunneling spectroscopy and prove their magnetic origin by applying an external magnetic field. In combination with density functional theory and spin Hamiltonian analysis, we determine the magnetic level distribution, as well as sign and magnitude of the exchange interaction between the two atoms. In contrast to typical 4f-3d bulk compounds, we find ferromagnetic coupling in the dimer. © 2018 American Physical Society.",
journal = "Physical Review Letters",
title = "Spin Excitations in a 4f−3d Heterodimer on MgO",
volume = "121",
number = "25",
pages = "257202",
doi = "10.1103/PhysRevLett.121.257202"
}

Singha, A., Donati, F., Natterer, F. D., Wäckerlin, C., Stavrić, S., Popović, Z. S., Šljivančanin, Ž., Patthey, F.,& Brune, H.. (2018). Spin Excitations in a 4f−3d Heterodimer on MgO. in Physical Review Letters, 121(25), 257202.
https://doi.org/10.1103/PhysRevLett.121.257202

Singha A, Donati F, Natterer FD, Wäckerlin C, Stavrić S, Popović ZS, Šljivančanin Ž, Patthey F, Brune H. Spin Excitations in a 4f−3d Heterodimer on MgO. in Physical Review Letters. 2018;121(25):257202.
doi:10.1103/PhysRevLett.121.257202 .

Singha, Aparajita, Donati, Fabio, Natterer, Fabian Donat, Wäckerlin, Christian, Stavrić, Srđan, Popović, Zoran S., Šljivančanin, Željko, Patthey, Francois, Brune, Harald, "Spin Excitations in a 4f−3d Heterodimer on MgO" in Physical Review Letters, 121, no. 25 (2018):257202,
https://doi.org/10.1103/PhysRevLett.121.257202 . .