skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Evolution of the Magnetic Excitations in NaOsO 3 through its Metal-Insulator Transition

Abstract

The temperature dependence of the excitation spectrum in NaOsO 3 through its metal-to-insulator transition (MIT) at 410 K has been investigated using resonant inelastic x-ray scattering at the Os L 3 edge. High-resolution (ΔE~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 NaOsO 3.

Authors:
 [1]; ORCiD logo [2];  [3];  [4];  [5];  [6];  [7];  [8];  [9]; ORCiD logo [10];  [3]
  1. Univ. College London (UCL) (United Kingdom); Ecole Polytechnique Federale Lausanne (Switzlerland)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Univ. College London (UCL) (United Kingdom)
  4. Univ. College London (UCL) (United Kingdom); Science and Technology Facilities Council (STFC), Harwell Campus, Oxford (United Kingdom). Diamond Light Source, Ltd.
  5. Chinese Academy of Sciences (CAS), Beijing (China); National Inst. for Materials Science (NIMS), Tsukuba (Japan)
  6. National Inst. for Materials Science (NIMS), Tsukuba (Japan)
  7. National Inst. for Materials Science (NIMS), Tsukuba (Japan); Hokkaido Univ., Sapporo (Japan)
  8. European Synchrotron Radiation Facility (ESRF), Grenoble (France)
  9. Leibniz Inst. for Solid State and Materials Research (IFW), Dresden (Germany)
  10. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
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:
1486927
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 22; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Vale, James, Calder, Stuart A., Donnerer, Christian, Pincini, D, Shi, Y. G., Tsujimoto, Y., Yamaura, K., Moretti Sala, M., van den brink, Jeroen, Christianson, Andrew D., and McMorrow, D. F. Evolution of the Magnetic Excitations in NaOsO3 through its Metal-Insulator Transition. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.227203.
Vale, James, Calder, Stuart A., Donnerer, Christian, Pincini, D, Shi, Y. G., Tsujimoto, Y., Yamaura, K., Moretti Sala, M., van den brink, Jeroen, Christianson, Andrew D., & McMorrow, D. F. Evolution of the Magnetic Excitations in NaOsO3 through its Metal-Insulator Transition. United States. doi:10.1103/PhysRevLett.120.227203.
Vale, James, Calder, Stuart A., Donnerer, Christian, Pincini, D, Shi, Y. G., Tsujimoto, Y., Yamaura, K., Moretti Sala, M., van den brink, Jeroen, Christianson, Andrew D., and McMorrow, D. F. Wed . "Evolution of the Magnetic Excitations in NaOsO3 through its Metal-Insulator Transition". United States. doi:10.1103/PhysRevLett.120.227203. https://www.osti.gov/servlets/purl/1486927.
@article{osti_1486927,
title = {Evolution of the Magnetic Excitations in NaOsO3 through its Metal-Insulator Transition},
author = {Vale, James and Calder, Stuart A. and Donnerer, Christian and Pincini, D and Shi, Y. G. and Tsujimoto, Y. and Yamaura, K. and Moretti Sala, M. and van den brink, Jeroen and Christianson, Andrew D. and McMorrow, D. F.},
abstractNote = {The temperature dependence of the excitation spectrum in NaOsO3 through its metal-to-insulator transition (MIT) at 410 K has been investigated using resonant inelastic x-ray scattering at the Os L3 edge. High-resolution (ΔE~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.},
doi = {10.1103/PhysRevLett.120.227203},
journal = {Physical Review Letters},
number = 22,
volume = 120,
place = {United States},
year = {2018},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Save / Share: