Dirac nodal lines and induced spin Hall effect in metallic rutile oxides
Sun Y, Zhang Y, Liu CX, Felser C, Yan B (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 95
Article Number: 235104
Journal Issue: 23
DOI: 10.1103/PhysRevB.95.235104
Abstract
We have found Dirac nodal lines (DNLs) in the band structures of metallic rutile oxides IrO2, OsO2, and RuO2 and have revealed a large spin Hall conductivity contributed by these nodal lines, which explains a strong spin Hall effect (SHE) of IrO2 discovered recently. Two types of DNLs exist. The first type forms DNL networks that extend in the whole Brillouin zone and appears only in the absence of spin-orbit coupling (SOC), which induces surface states on the boundary. Because of SOC-induced band anticrossing, a large intrinsic SHE can be realized in these compounds. The second type appears at the Brillouin zone edges and is stable against SOC because of the protection of nonsymmorphic symmetry. Besides reporting these DNL materials, our work reveals the general relationship between DNLs and the SHE, indicating a way to apply Dirac nodal materials for spintronics.
Involved external institutions
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
Pennsylvania State University (Penn State)
United States (USA) (US)
Germany (DE)
Pennsylvania State University (Penn State)
United States (USA) (US)
How to cite
APA:
Sun, Y., Zhang, Y., Liu, C.-X., Felser, C., & Yan, B. (2017). Dirac nodal lines and induced spin Hall effect in metallic rutile oxides. Physical Review B, 95(23). https://doi.org/10.1103/PhysRevB.95.235104
MLA:
Sun, Yan, et al. "Dirac nodal lines and induced spin Hall effect in metallic rutile oxides." Physical Review B 95.23 (2017).
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