Electronic Structure and Magnetism of the Triple-layer Ruthenate Sr<sub>4</sub>Ru<sub>3</sub>O<sub>10</sub>

ORAL

Abstract

We report electronic band structure calculations for Sr4Ru3O10 to analyze the character of the bands and compare with recent spin-resolved ARPES experiments [1]. That work has verified the primary predictions of our recently published calculations [2] and provided new information on the spectra. In this talk we examine in more detail the Fermi surfaces for the majority and minority spin bands and the narrow spin polarized bands near the Fermi energy. We consider the dependence on the functional used in the calculations and the role of the rotations of the oxygen octahedra, which have previously been argued to be important for stabilizing the ferromagnetism, and we analyze the contributions of the different layers to the magnetism and the individual bands.

[1] P. Ngabonziza, et al., abstract in this meeting and in preparation.

[2] G. Gebreyesus, et al., Phys. Rev. B 105, 165119 (2022)

*US-Africa Initiative in Electronic Structure, funded by the 2019 APS Innovation Fund.

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Publication: G. Gebreyesus, et al., Phys. Rev. B 105, 165119 (2022).

Presenters

  • Richard M Martin

    • Stanford University

Authors

  • Richard M Martin

    • Stanford University

  • Garu Gebreyesus

    • University of Ghana

  • Prosper Ngabonziza

    • Louisiana State University

  • Jonathan D Denlinger

    • Lawrence Berkeley National Laboratory
    • Lawrence Berkeley National Laboratory, Berkeley, California

  • Alexei V Fedorov

    • Lawrence Berkeley National Laboratory

  • James W Allen

    • University of Michigan
    • U. of Michigan