Crossover from itinerant to localized magnetic excitations through the metal-insulator transition in NaOsO3

@article{ ISI:000433420100002,
Author = {Vale, J. G. and Calder, S. and Donnerer, C. and Pincini, D. and Shi, Y.
   G. and Tsujimoto, Y. and Yamaura, K. and Sala, M. Moretti and van den
   Brink, J. and Christianson, A. D. and McMorrow, D. F.},
Title = {{Crossover from itinerant to localized magnetic excitations through the
   metal-insulator transition in NaOsO3}},
Journal = {{PHYSICAL REVIEW B}},
Year = {{2018}},
Volume = {{97}},
Number = {{18}},
Month = {{MAY 30}},
Abstract = {{NaOsO3 undergoes a metal-insulator transition (MIT) at 410 K,
   concomitant with the onset of antiferromagnetic order. The excitation
   spectra have been investigated through the MIT by resonant inelastic
   x-ray scattering (RIXS) at the Os L-3 edge. Low resolution (Delta E
   similar to 300 meV) measurements over a wide range of energies reveal
   that local electronic excitations do not change appreciably through the
   MIT. This is consistent with a picture in which structural distortions
   do not drive the MIT. In contrast, high resolution (Delta E similar to
   56 meV) measurements show that the well-defined, low-energy magnons in
   the insulating state weaken and dampen upon approaching the metallic
   state. Concomitantly, a broad continuum of excitations develops which is
   well described by the magnetic fluctuations of a nearly
   antiferromagnetic Fermi liquid. By revealing the continuous evolution of
   the magnetic quasiparticle spectrum as it changes its character from
   itinerant to localized, our results provide unprecedented insight into
   the nature of the MIT in NaOsO3. In particular, the presence of weak
   correlations in the paramagnetic phase implies a degree of departure
   from the ideal Slater limit.}},
Publisher = {{AMER PHYSICAL SOC}},
Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Vale, JG (Corresponding Author), UCL, London Ctr Nanotechnol, Gower St, London WC1E 6BT, England.
   Vale, JG (Corresponding Author), UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England.
   Vale, JG (Corresponding Author), Ecole Polytech Fed Lausanne, Lab Quantum Magnetism, CH-1015 Lausanne, Switzerland.
   Vale, J. G.; Donnerer, C.; Pincini, D.; McMorrow, D. F., UCL, London Ctr Nanotechnol, Gower St, London WC1E 6BT, England.
   Vale, J. G.; Donnerer, C.; Pincini, D.; McMorrow, D. F., UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England.
   Vale, J. G., Ecole Polytech Fed Lausanne, Lab Quantum Magnetism, CH-1015 Lausanne, Switzerland.
   Calder, S.; Christianson, A. D., Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA.
   Pincini, D., Diamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England.
   Shi, Y. G., Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
   Shi, Y. G., Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
   Shi, Y. G.; Tsujimoto, Y.; Yamaura, K., Natl Inst Mat Sci, Res Ctr Funct Mat, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan.
   Yamaura, K., Hokkaido Univ, Grad Sch Chem Sci & Engn, Kita Ku, North 10 West 8, Sapporo, Hokkaido 0600810, Japan.
   Sala, M. Moretti, ESRF, European Synchrotron, 71 Ave Martyrs, F-38043 Grenoble, France.
   van den Brink, J., IFW Dresden, Inst Theoret Solid State Phys, D-01171 Dresden, Germany.
   Christianson, A. D., Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.}},
DOI = {{10.1103/PhysRevB.97.184429}},
Article-Number = {{184429}},
ISSN = {{2469-9950}},
EISSN = {{2469-9969}},
Keywords-Plus = {{SPIN DYNAMICS; ANTIFERROMAGNET; SPECTRUM}},
Research-Areas = {{Materials Science; Physics}},
Web-of-Science-Categories  = {{Materials Science, Multidisciplinary; Physics, Applied; Physics,
   Condensed Matter}},
Author-Email = {{j.vale@ucl.ac.uk
   caldersa@ornl.gov}},
ResearcherID-Numbers = {{Moretti, Marco/AAF-9255-2019
   McMorrow, Desmond/C-2655-2008
   van den Brink, Jeroen/Y-3931-2019
   van den Brink, Jeroen/E-5670-2011
   Tsujimoto, Yoshihiro/H-6034-2012
   McMorrow, Desmond Francis/M-9036-2019
   Shi, Youguo/B-6316-2018
   }},
ORCID-Numbers = {{Moretti, Marco/0000-0002-9744-9976
   McMorrow, Desmond/0000-0002-4947-7788
   van den Brink, Jeroen/0000-0001-6594-9610
   Tsujimoto, Yoshihiro/0000-0003-2140-3362
   McMorrow, Desmond Francis/0000-0002-4947-7788
   Calder, Stuart/0000-0001-8402-3741
   YAMAURA, Kazunari/0000-0003-0390-8244
   Pincini, Davide/0000-0002-0884-4748}},
Funding-Acknowledgement = {{University College London (UCL); Ecole Polytechnique Federale de
   Lausanne (EPFL); EPSRCEngineering & Physical Sciences Research Council
   (EPSRC) {[}EP/N027671/1, EP/N034872/1]; JSPS KAKENHIMinistry of
   Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan
   Society for the Promotion of ScienceGrants-in-Aid for Scientific
   Research (KAKENHI) {[}15K14133, 16H04501]; National Natural Science
   Foundation of ChinaNational Natural Science Foundation of China (NSFC)
   {[}11774399, 11474330]}},
Funding-Text = {{J.G.V. thanks University College London (UCL) and Ecole Polytechnique
   Federale de Lausanne (EPFL) for financial support through a UCL Impact
   award, and useful discussions with B. J. Blackburn, A. Princep, and E.
   Vaisanen. Work at UCL was supported by the EPSRC (Grants No.
   EP/N027671/1 and No. EP/N034872/1). This research used resources at the
   High Flux Isotope Reactor and Spallation Neutron Source, DOE Office of
   Science User Facilities operated by the Oak Ridge National Laboratory.
   K.Y. thanks financial support from JSPS KAKENHI (Grants No. 15K14133 and
   No. 16H04501). Y.G.S. was supported by the National Natural Science
   Foundation of China (Grants No. 11774399 and No. 11474330). All data
   created during this research are openly available from the UCL Discovery
   data archive.}},
Number-of-Cited-References = {{71}},
Times-Cited = {{8}},
Usage-Count-Last-180-days = {{1}},
Usage-Count-Since-2013 = {{26}},
Journal-ISO = {{Phys. Rev. B}},
Doc-Delivery-Number = {{GH4YF}},
Unique-ID = {{ISI:000433420100002}},
OA = {{Green Published, Green Accepted, Bronze}},
DA = {{2020-12-22}},
}