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Title: Magnetic interactions in NiO at ultrahigh pressure

Abstract

Here, magnetic properties of NiO have been studied in the multimegabar pressure range by nuclear forward scattering of synchrotron radiation using the 67.4 keV M ssbauer transition of 61Ni. 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.

Authors:
 [1];  [2];  [3];  [4];  [5];  [5];  [2];  [6];  [7];  [5];  [2];  [4];  [4];  [8];  [8];  [9]
  1. Julich Centre for Neutron Science (JCNS) and Peter Grunberg Institut (PGI), JARA-FIT, Forschungszentrum Julich GmbH, Julich (Germany)
  2. Univ. Bayreuth, Bayreuth (Germany)
  3. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  4. Linkoping Univ., Linkoping (Sweden)
  5. European Synchrotron Radiation Facility, Grenoble (France)
  6. Univ. of Chicago, Chicago, IL (United States)
  7. Julich Centre for Neutron Science (JCNS) and Peter Grunberg Institut (PGI), JARA-FIT, Forschungszentrum Julich GmbH, Julich (Germany); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  8. Ludwig-Maximilian Univ. Munich, Munich (Germany)
  9. Linkoping Univ., Linkoping (Sweden); National Univ. of Science and Technology 'MISIS', Moscow (Russia); Tomsk State Univ., Tomsk (Russia)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1261557
Alternate Identifier(s):
OSTI ID: 1254356
Grant/Contract Number:  
AC05-00OR22725; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 93; Journal Issue: 20; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Potapkin, Vasily, Dubrovinsky, Leonid, Sergueev, I., Ekholm, M., Kantor, Innokenty, Bessas, D., Bykova, E., Prakapenka, V., Hermann, Raphael P., Rueffer, Rudolf, Cerantola, V., Jonsson, H. J. M., Olovsson, W., Mankovsky, S., Ebert, H., and Abrikosov, I. A. Magnetic interactions in NiO at ultrahigh pressure. United States: N. p., 2016. Web. doi:10.1103/PhysRevB.93.201110.
Potapkin, Vasily, Dubrovinsky, Leonid, Sergueev, I., Ekholm, M., Kantor, Innokenty, Bessas, D., Bykova, E., Prakapenka, V., Hermann, Raphael P., Rueffer, Rudolf, Cerantola, V., Jonsson, H. J. M., Olovsson, W., Mankovsky, S., Ebert, H., & Abrikosov, I. A. Magnetic interactions in NiO at ultrahigh pressure. United States. doi:10.1103/PhysRevB.93.201110.
Potapkin, Vasily, Dubrovinsky, Leonid, Sergueev, I., Ekholm, M., Kantor, Innokenty, Bessas, D., Bykova, E., Prakapenka, V., Hermann, Raphael P., Rueffer, Rudolf, Cerantola, V., Jonsson, H. J. M., Olovsson, W., Mankovsky, S., Ebert, H., and Abrikosov, I. A. Tue . "Magnetic interactions in NiO at ultrahigh pressure". United States. doi:10.1103/PhysRevB.93.201110. https://www.osti.gov/servlets/purl/1261557.
@article{osti_1261557,
title = {Magnetic interactions in NiO at ultrahigh pressure},
author = {Potapkin, Vasily and Dubrovinsky, Leonid and Sergueev, I. and Ekholm, M. and Kantor, Innokenty and Bessas, D. and Bykova, E. and Prakapenka, V. and Hermann, Raphael P. and Rueffer, Rudolf and Cerantola, V. and Jonsson, H. J. M. and Olovsson, W. and Mankovsky, S. and Ebert, H. and Abrikosov, I. A.},
abstractNote = {Here, magnetic properties of NiO have been studied in the multimegabar pressure range by nuclear forward scattering of synchrotron radiation using the 67.4 keV M ssbauer transition of 61Ni. 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.},
doi = {10.1103/PhysRevB.93.201110},
journal = {Physical Review B},
number = 20,
volume = 93,
place = {United States},
year = {2016},
month = {5}
}

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Figures / Tables:

Figure 1 Figure 1: Time evolution of the nuclear forward scattering for NiO at room temperature at the following pressures: (a) ambient; (b) 39 GPa; (c) 150 GPa; and (d) 280 GPa. The red solid lines show the fit according to the model described in the text. Grey rectangles mark the ariasmore » that was not fitted due to insufficient statistics. Blue straight lines used as a guide for an eye to track po- sition shift of the major beats under compression.« less

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    Works referencing / citing this record:

    Magnetic interactions in NiO at ultrahigh pressure
    text, January 2016

    • Potapkin, V.; Dubrovinsky, L.; Sergueev, I.
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2017-00382

      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.