Nature of the magnetic interactions in Sr3NiIrO6

Turan Birol; Kristjan Haule; David Vanderbilt

doi:10.1103/PhysRevB.98.134432

Nature of the magnetic interactions in Sr3NiIrO6

Turan Birol, Kristjan Haule, David Vanderbilt

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Iridates abound with interesting magnetic behaviors because of their strong spin-orbit coupling. Sr3NiIrO6 brings together the spin-orbital entanglement of the Ir4+ ion with a 3d Ni cation and a one-dimensional crystal structure. It has a ferrimagnetic ground state with a 55-T coercive field. We perform a theoretical study of the magnetic interactions in this compound, and elucidate the role of anisotropic symmetric exchange as the source of its strong magnetic anisotropy. Our first-principles calculations reproduce the magnon spectra of this compound and predict a signature in the cross sections that can differentiate the anisotropic exchange from single-ion anisotropy.

Original language	English (US)
Article number	134432
Journal	Physical Review B
Volume	98
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.98.134432
State	Published - Oct 18 2018

Bibliographical note

Funding Information:
This work was supported by NSF DMREF Grant No. DMR-1629059.

Funding Information:
This work was supported by NSF DMREF Grant No. DMR-1629059.

Publisher Copyright:
© 2018 American Physical Society.

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10.1103/PhysRevB.98.134432

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abstract = "Iridates abound with interesting magnetic behaviors because of their strong spin-orbit coupling. Sr3NiIrO6 brings together the spin-orbital entanglement of the Ir4+ ion with a 3d Ni cation and a one-dimensional crystal structure. It has a ferrimagnetic ground state with a 55-T coercive field. We perform a theoretical study of the magnetic interactions in this compound, and elucidate the role of anisotropic symmetric exchange as the source of its strong magnetic anisotropy. Our first-principles calculations reproduce the magnon spectra of this compound and predict a signature in the cross sections that can differentiate the anisotropic exchange from single-ion anisotropy.",

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AU - Haule, Kristjan

AU - Vanderbilt, David

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N2 - Iridates abound with interesting magnetic behaviors because of their strong spin-orbit coupling. Sr3NiIrO6 brings together the spin-orbital entanglement of the Ir4+ ion with a 3d Ni cation and a one-dimensional crystal structure. It has a ferrimagnetic ground state with a 55-T coercive field. We perform a theoretical study of the magnetic interactions in this compound, and elucidate the role of anisotropic symmetric exchange as the source of its strong magnetic anisotropy. Our first-principles calculations reproduce the magnon spectra of this compound and predict a signature in the cross sections that can differentiate the anisotropic exchange from single-ion anisotropy.

AB - Iridates abound with interesting magnetic behaviors because of their strong spin-orbit coupling. Sr3NiIrO6 brings together the spin-orbital entanglement of the Ir4+ ion with a 3d Ni cation and a one-dimensional crystal structure. It has a ferrimagnetic ground state with a 55-T coercive field. We perform a theoretical study of the magnetic interactions in this compound, and elucidate the role of anisotropic symmetric exchange as the source of its strong magnetic anisotropy. Our first-principles calculations reproduce the magnon spectra of this compound and predict a signature in the cross sections that can differentiate the anisotropic exchange from single-ion anisotropy.

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Nature of the magnetic interactions in Sr3NiIrO6

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