2019/02/12 by Kyo-Hoon Ahn, Atsushi Hariki, Kwan-Woo Lee +1 · 4 citations
Physics and Astronomy · #cond-mat.str-el #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.99.184432
published as Phys. Rev. B 99, 184432 (2019) · 5 pages, 5 figures
arxiv created 2019/02/12 · arxiv updated 2019/05/24
We present a computational study of antiferromagnetic transition in RuO2. The rutile structure with the magnetic sublattices coupled by π/2-rotation leads to a spin-polarized band structure in the antiferromagnetic state, which gives rise to a d-wave modulation of the Fermi surface in the spin-triplet channel. We argue a finite spin conductivity that changes sign in the ab plane is expected RuO2 because of this band structure. We analyze the origin of the antiferromagnetic instability and link it to presence of a nodal line close to the Fermi level.