Hauptseite > Publikationsdatenbank > Interplay of magnetic states and hyperfine fields of iron dimers on MgO(001) > print

001     910282
005     20221020130341.0
037 _ _ |a FZJ-2022-03724
041 _ _ |a English
100 1 _ |a Shehada, Sufyan
|0 P:(DE-Juel1)177041
|b 0
|e Corresponding author
|u fzj
111 2 _ |a Frühjahrstagung der Deutschen Physikalischen Gesellschaft (DPG)
|c Regensburg
|d 2022-09-04 - 2022-09-09
|w Germany
245 _ _ |a Interplay of magnetic states and hyperfine fields of iron dimers on MgO(001)
260 _ _ |c 2022
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
|2 DataCite
336 7 _ |a INPROCEEDINGS
|2 BibTeX
336 7 _ |a conferenceObject
|2 DRIVER
336 7 _ |a LECTURE_SPEECH
|2 ORCID
336 7 _ |a Conference Presentation
|b conf
|m conf
|0 PUB:(DE-HGF)6
|s 1666184557_18894
|2 PUB:(DE-HGF)
|x After Call
520 _ _ |a Individual nuclear spin states can have very long lifetimes and could be useful as qubits. Progress in this direction was achieved on MgO/Ag(001) via detection of the hyperfine interaction (HFI) of Fe, Ti and Cu adatoms using scanning tunneling microscopy. Previously, we systematically quantified from first-principles the HFI for the whole series of 3d transition adatoms (Sc-Cu) deposited on various ultra-thin insulators, establishing the trends of the computed HFI with respect to the filling of the magnetic s- and d-orbitals of the adatoms and on the bonding with the substrate. Here we explore the case of dimers by investigating the correlation between the HFI and the magnetic state of free standing Fe dimers, single Fe adatoms and dimers deposited on a bilayer of MgO(001). We find that the magnitude of the HFI can be controlled by switching the magnetic state of the dimers. For short Fe-Fe distances, the antiferromagnetic state enhances the HFI with respect to that of the ferromagnetic state. By increasing the distance between the magnetic atoms, a transition toward the opposite behavior is observed. Furthermore, we demonstrate the ability to substantially modify the HFI by atomic control of the location of the adatoms on the substrate. Our results establish the limits of applicability of the usual hyperfine hamiltonian and we propose an extension based on multiple scattering processes.
536 _ _ |a 5211 - Topological Matter (POF4-521)
|0 G:(DE-HGF)POF4-5211
|c POF4-521
|f POF IV
|x 0
700 1 _ |a Lounis, Samir
|0 P:(DE-Juel1)130805
|b 1
|e Corresponding author
|u fzj
700 1 _ |a dos Santos Dias, Manuel
|0 P:(DE-Juel1)145395
|b 2
|u fzj
700 1 _ |a Abusaa, Muayad
|0 P:(DE-HGF)0
|b 3
909 C O |o oai:juser.fz-juelich.de:910282
|p VDB
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 0
|6 P:(DE-Juel1)177041
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 1
|6 P:(DE-Juel1)130805
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 2
|6 P:(DE-Juel1)145395
913 1 _ |a DE-HGF
|b Key Technologies
|l Natural, Artificial and Cognitive Information Processing
|1 G:(DE-HGF)POF4-520
|0 G:(DE-HGF)POF4-521
|3 G:(DE-HGF)POF4
|2 G:(DE-HGF)POF4-500
|4 G:(DE-HGF)POF
|v Quantum Materials
|9 G:(DE-HGF)POF4-5211
|x 0
914 1 _ |y 2022
920 1 _ |0 I:(DE-Juel1)IAS-1-20090406
|k IAS-1
|l Quanten-Theorie der Materialien
|x 0
920 1 _ |0 I:(DE-Juel1)PGI-1-20110106
|k PGI-1
|l Quanten-Theorie der Materialien
|x 1
920 1 _ |0 I:(DE-82)080009_20140620
|k JARA-FIT
|l JARA-FIT
|x 2
920 1 _ |0 I:(DE-82)080012_20140620
|k JARA-HPC
|l JARA - HPC
|x 3
980 _ _ |a conf
980 _ _ |a VDB
980 _ _ |a I:(DE-Juel1)IAS-1-20090406
980 _ _ |a I:(DE-Juel1)PGI-1-20110106
980 _ _ |a I:(DE-82)080009_20140620
980 _ _ |a I:(DE-82)080012_20140620
980 _ _ |a UNRESTRICTED

LibraryCollectionCLSMajorCLSMinorLanguageAuthor
Marc 21