Spin Excitations in a 4f−3d Heterodimer on MgO
Samo za registrovane korisnike
2018
Autori
Singha, AparajitaDonati, Fabio
Natterer, Fabian Donat
Wäckerlin, Christian
Stavrić, Srđan
Popović, Zoran S.
Šljivančanin, Željko
Patthey, Francois
Brune, Harald
Članak u časopisu (Objavljena verzija)
,
© 2018 American Physical Society
Metapodaci
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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.
Izvor:
Physical Review Letters, 2018, 121, 25, 257202-Finansiranje / projekti:
- Elektronske, transportne i optičke osobine nanofaznih materijala (RS-MESTD-Basic Research (BR or ON)-171033)
- Swiss National Science Foundation (SNSF) [200020]
- Swiss National Science Foundation (SNSF) [157081]
- Swiss National Science Foundation (SNSF) [PP00P2_176866]
- Swiss National Science Foundation (SNSF) [PZ00P2_167965]
- Swiss National Science Foundation (SNSF) [PZ00P2]
- Swiss National Science Foundation (SNSF) [142474]
- Swiss National Science Foundation (SNSF) [IZ73Z0]
- Swiss National Science Foundation (SNSF) [152406]
- PRACE DECI-13
DOI: 10.1103/PhysRevLett.121.257202
ISSN: 0031-9007; 1079-7114
PubMed: 30608837
WoS: 000454179100021
Scopus: 2-s2.0-85059177201
URI
https://link.aps.org/doi/10.1103/PhysRevLett.121.257202https://vinar.vin.bg.ac.rs/handle/123456789/8012
Kolekcije
Institucija/grupa
VinčaTY - 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 . .