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Title: Interplay of spin-orbit coupling and hybridization in Ca 3 LiOsO 6 and Ca 3 LiRuO 6

Abstract

Here, the electronic ground state of Ca3LiOsO6 was recently considered within an intermediate coupling regime that revealed J = 3/2 spin-orbit entangled magnetic moments. Through inelastic neutron scattering and density functional theory we investigate the magnetic interactions and probe how the magnetism is influenced by the change in hierarchy of interactions as we move from Ca3LiOsO6 (5d3) to Ca3LiRuO6 (4d3). An alteration of the spin gap and ordered local moment is observed, however the magnetic structure, Néel temperature, and exchange interactions are unaltered. To explain this behavior it is necessary to include both spin-orbit coupling and hybridization, indicating the importance of an intermediate coupling approach when describing 5d oxides.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [1];  [3];  [4]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Missouri, Columbia, MO (United States)
  3. Chinese Academy of Sciences (CAS), Beijing (China)
  4. National Institute for Materials Science, Ibaraki (Japan); Hokkaido Univ., Hokkaido (Japan)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1486965
Alternate Identifier(s):
OSTI ID: 1409870
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; Journal Issue: 18; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Calder, Stuart A., Singh, David J., Garlea, Vasile O., Lumsden, Mark D., Shi, Y. G., Yamaura, K., and Christianson, Andrew D. Interplay of spin-orbit coupling and hybridization in Ca3LiOsO6 and Ca3LiRuO6. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.96.184426.
Calder, Stuart A., Singh, David J., Garlea, Vasile O., Lumsden, Mark D., Shi, Y. G., Yamaura, K., & Christianson, Andrew D. Interplay of spin-orbit coupling and hybridization in Ca3LiOsO6 and Ca3LiRuO6. United States. https://doi.org/10.1103/PhysRevB.96.184426
Calder, Stuart A., Singh, David J., Garlea, Vasile O., Lumsden, Mark D., Shi, Y. G., Yamaura, K., and Christianson, Andrew D. Wed . "Interplay of spin-orbit coupling and hybridization in Ca3LiOsO6 and Ca3LiRuO6". United States. https://doi.org/10.1103/PhysRevB.96.184426. https://www.osti.gov/servlets/purl/1486965.
@article{osti_1486965,
title = {Interplay of spin-orbit coupling and hybridization in Ca3LiOsO6 and Ca3LiRuO6},
author = {Calder, Stuart A. and Singh, David J. and Garlea, Vasile O. and Lumsden, Mark D. and Shi, Y. G. and Yamaura, K. and Christianson, Andrew D.},
abstractNote = {Here, the electronic ground state of Ca3LiOsO6 was recently considered within an intermediate coupling regime that revealed J = 3/2 spin-orbit entangled magnetic moments. Through inelastic neutron scattering and density functional theory we investigate the magnetic interactions and probe how the magnetism is influenced by the change in hierarchy of interactions as we move from Ca3LiOsO6 (5d3) to Ca3LiRuO6 (4d3). An alteration of the spin gap and ordered local moment is observed, however the magnetic structure, Néel temperature, and exchange interactions are unaltered. To explain this behavior it is necessary to include both spin-orbit coupling and hybridization, indicating the importance of an intermediate coupling approach when describing 5d oxides.},
doi = {10.1103/PhysRevB.96.184426},
journal = {Physical Review B},
number = 18,
volume = 96,
place = {United States},
year = {Wed Nov 22 00:00:00 EST 2017},
month = {Wed Nov 22 00:00:00 EST 2017}
}

Journal Article:

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Cited by: 11 works
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Figures / Tables:

FIG. 1 FIG. 1: (a) Neutron powder diffraction data (black) and model (red) for Ca3LiRuO6 at 4 K. Tick marks correspond to, from top to bottom, the crystal structural, magnetic structure and Al sample holder. Inset: intensity of magnetic reflection at 2θ=22°. (b) Ca3LiOsO6 and Ca3LiRuO6 form the hexagonal 2H-perovskite structure. Magneticmore » Os5+/Ru5+ ions (blue) are surrounded by six oxygen anions (red spheres). These octahedra are separated along the c-axis by Li+ cations. Ca2+ ions (grey spheres) provide the charge balance. (c) The magnetic structure and exchange interaction pathways are shown.« less

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Works referencing / citing this record:

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Origin of magnetic excitation gap in double perovskite Sr 2 FeOsO 6
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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.