Fig. 5: Altermagnetic materials.
a Altermagnetic model with opposite-spin sublattices connected by rotation and not by translation or inversion, and corresponding distinct spin-group form, zero net magnetization, \({\mathcal{T}}\)-symmetry breaking spin splitting with alternating sign, anisotropic sublattice spin densities, and anisotropic d-wave spin-split Fermi surfaces. Adopted from ref. 25. b Spin-torque ferromagnetic-resonance measurements for the sample schematics and definition of the coordinate axes for the (101)-oriented sample. Adopted from ref. 107. c The spin Seebeck effect of the RuO2/YIG(111) sample. Adopted from ref. 27. d First-principles calculations of the giant magnetoresistance (GMR) in RuO2. Adopted from ref.104. e First-principles calculations of the TMR in RuO2. Adopted from ref. 104.
