@article{2fa46033a0304608a2ab9c4f92621cb0,
title = "Fermi-level Dirac crossings in 4d and 5d cubic metal oxides: NaPd3 O4 and NaPt3 O4",
abstract = "The cubic oxide metals NaM3O4 (M=Pd or Pt) crystallize in the nonsymmorphic Pm3{\c a}n space group. First-principles calculations are employed here to understand the role of the MO4 square planes and M-M interactions in the development of the electronic structure. The compounds host numerous Dirac crossings near the Fermi level which, in the absence of spin-orbit coupling, appear to form a cubic nodal state. Spin-orbit coupling fragments this nodal state into smaller regions with Dirac-like character, with the fragmenting being more pronounced in the M=Pt compound.",
author = "Teicher, {Samuel M.L.} and Lamontagne, {Leo K.} and Schoop, {Leslie M.} and Ram Seshadri",
note = "Funding Information: We thank Claudia Felser for encouraging this work, and Douglas Fabini and Xie Zhang for helpful discussions. This work was supported by the National Science Foundation through DMR 1710638. Initial support to S.M.L.T. from a New Partnerships Challenge Grant program of the California Nanosystems Institute (CNSI) is gratefully acknowledged. L.M.S. was supported by the Princeton Center for Complex Materials, a Materials Research Science and Engineering Center (MRSEC) DMR-1420541, and by the Princeton Catalysis Initiative (PCI). We gratefully acknowledge the use of the computing facilities of the Center for Scientific Computing at UC Santa Barbara, supported by NSF CNS-1725797 and by the NSF MRSEC Program (NSF DMR-1720256). S.M.L.T. has been supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE-1650114. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. Publisher Copyright: {\textcopyright} 2019 American Physical Society.",
year = "2019",
month = may,
day = "28",
doi = "10.1103/PhysRevB.99.195148",
language = "English (US)",
volume = "99",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "19",
}