% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Potapkin:810082, author = {Potapkin, V. and Dubrovinsky, L. and Sergueev, I. and Ekholm, M. and Kantor, I. and Bessas, D. and Bykova, E. and Prakapenka, V. and Rüffer, R. and Cerantola, V. and Jönsson, H. J. M. and Olovsson, W. and Mankovsky, S. and Ebert, H. and Abrikosov, I. A. and Hermann, Raphael}, title = {{M}agnetic interactions in {N}i{O} at ultrahigh pressure}, journal = {Physical review / B}, volume = {93}, number = {20}, issn = {2469-9950}, address = {College Park, Md.}, publisher = {APS}, reportid = {FZJ-2016-02959}, pages = {201110}, year = {2016}, abstract = {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.}, cin = {JCNS-2 / PGI-4 / JARA-FIT}, ddc = {530}, cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 / $I:(DE-82)080009_20140620$}, pnm = {144 - Controlling Collective States (POF3-144) / 524 - Controlling Collective States (POF3-524) / 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) / 6213 - Materials and Processes for Energy and Transport Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)}, pid = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 / G:(DE-HGF)POF3-6G4}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000376638400001}, doi = {10.1103/PhysRevB.93.201110}, url = {https://juser.fz-juelich.de/record/810082}, }