Magnetic Ni-N-Ni Centers in N-substituted NiO
- Univ. of British Columbia, Vancouver, BC (Canada)
- Univ. of Saskatchewan, Saskatoon, SK (Canada). Canadian Light Source, Inc.
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Max Planck Institute for Chemical Physics of Solids, Dresden (Germany)
Here, to explore how anion substitution modifies the existing magnetism in strongly correlated oxides, we investigate local electronic states and magnetic ordering in nickel oxide (NiO) induced by substituting oxygen (O) with nitrogen (N). Each N introduces an additional N 2p hole and modifies the magnetic moment of a neighboring nickel (Ni) cation site, as the exchange interaction between this hole and the Ni $$e_{g}$$ electrons exceeds the Ni-O-Ni superexchange interaction. This leads to the formation of Ni-N-Ni centers consisting of five spins, without perturbing the antiferromagnetic NiO lattice. These centers are studied using density functional theory and confirmed through high-resolution spectroscopy on N-substituted NiO thin films grown by molecular beam epitaxy. This type of magnetic design may enable future advances in quantum technologies based on strongly correlated materials, such as quantum sensors and spin-based qubits.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 3007108
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 135; ISSN 1079-7114; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Signatures of stripe phases in hole-doped La{sub 2}NiO{sub 4}
Imaging Chemical Aggregation of Ni/NiO Particles from Reduced NiO-YSZ
Magnetic properties of La{sub 2}NiO{sub 4.16} and La{sub 2{minus}x}Pr{sub x}NiO{sub 4+{delta}}
Journal Article
·
Wed Jul 01 00:00:00 EDT 1998
· Physical Review, B: Condensed Matter
·
OSTI ID:636186
Imaging Chemical Aggregation of Ni/NiO Particles from Reduced NiO-YSZ
Journal Article
·
Wed Jul 20 00:00:00 EDT 2011
· Electrochemical and Solid-State Letters
·
OSTI ID:1029067
Magnetic properties of La{sub 2}NiO{sub 4.16} and La{sub 2{minus}x}Pr{sub x}NiO{sub 4+{delta}}
Journal Article
·
Wed Jul 01 00:00:00 EDT 1998
· Journal of Solid State Chemistry
·
OSTI ID:651120