This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.93.201110 in citations.
Please use the identifier: http://hdl.handle.net/2128/11397 in citations.
Magnetic interactions in NiO at ultrahigh pressure
Magnetic interactions in NiO at ultrahigh pressure
Magnetic properties of NiO have been studied in the multimegabar pressure range by nuclear forward scattering of synchrotron radiation using the 67.4 keV Mössbauer transition of Ni61. The observed magnetic hyperfine splitting confirms the antiferromagnetic state of NiO up to 280 GPa, the highest pre...
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Personal Name(s): | Potapkin, V. (Corresponding author) |
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Dubrovinsky, L. / Sergueev, I. / Ekholm, M. / Kantor, I. / Bessas, D. / Bykova, E. / Prakapenka, V. / Rüffer, R. / Cerantola, V. / Jönsson, H. J. M. / Olovsson, W. / Mankovsky, S. / Ebert, H. / Abrikosov, I. A. / Hermann, Raphael | |
Contributing Institute: |
Streumethoden; JCNS-2 JARA-FIT; JARA-FIT Streumethoden; PGI-4 |
Published in: | Physical Review B Physical review / B, 93 93 (2016 2016) 20 20, S. 201110 201110 |
Imprint: |
College Park, Md.
APS
2016
|
DOI: |
10.1103/PhysRevB.93.201110 |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) Materials and Processes for Energy and Transport Technologies Quantum Condensed Matter: Magnetism, Superconductivity Controlling Collective States Controlling Collective States |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/11397 in citations.
Magnetic properties of NiO have been studied in the multimegabar pressure range by nuclear forward scattering of synchrotron radiation using the 67.4 keV Mössbauer transition of Ni61. The observed magnetic hyperfine splitting confirms the antiferromagnetic state of NiO up to 280 GPa, the highest pressure where magnetism has been observed so far, in any material. Remarkably, the hyperfine field increases from 8.47 T at ambient pressure to ∼24 T at the highest pressure, ruling out the possibility of a magnetic collapse. A joint x-ray diffraction and extended x-ray-absorption fine structure investigation reveals that NiO remains in a distorted sodium chloride structure in the entire studied pressure range. Ab initio calculations support the experimental observations, and further indicate a complete absence of Mott transition in NiO up to at least 280 GPa. |