Fig. 1: Illustration of transverse configurations of AHE and ANE measurements on SrIr0.8Sn0.2O3.
From: Large asymmetric anomalous Nernst effect in the antiferromagnet SrIr0.8Sn0.2O3
a The schematic of the two Hall configurations upon exchanging the directions of the applied current (I) and the measured voltage (V). The general labels of the two directions, i and j, are replaced with the crystallographic directions, a and b (Fig. 1c), used in the actual measurements. The aqua arrows represent the transverse electric field (E). The antisymmetry of the two configurations manifests as a result of the fact that the polarity of V is defined by the coordinate and must be parallel with the polarity of E in one configuration while anti-parallel in the other. The red arrows denote the AFM order of SISO (Fig. 1c). b The schematic of the two Nernst configurations upon exchanging the directions of the temperature gradient and the measured voltage. The red and blue shades represent the hot and cold end, respectively. The aqua and green arrows represent the antisymmetric and symmetric components of the transverse electric field, respectively. c Crystal structure of SISO. The n-glide (orchid) and b-glide (cyan) planes are nonsymmorphic operations that protect the semimetal state. The red arrows denote the Ir moments along the a-axis in the G-type AFM state which breaks both glide symmetries.
