Fig. 2: Magnetic structures of Mn5Si3.
From: Anomalous Nernst effect in the noncollinear antiferromagnet Mn5Si3
Crystal structures of the low-temperature (T < 100 K) antiferromagnetic phases in the orthorhombic a-b plane indicated by the black outlined rectangle (b > a). Mn and Si atoms are shown in magenta and blue color, respectively. Red arrows indicate different Mn magnetic moments. a Collinear AF2 phase observed for 60 K < T < 100 K17,24,29,56. b Noncoplanar AF1 phase without inversion symmetry proposed in ref. 26 for T < 60 K56. c Illustration of the AF1 phase proposed in ref. 28 for T < 60 K, also noncoplanar and noncentrosymmetric.
