Extended Data Table 2 Comparison to previous reports of hidden order in Sr2IrO4

From: Quantum spin nematic phase in a square-lattice iridate

  1. The SN order discovered in our work is symmetry distinct from that of a loop current (LC) order, originally suggested to account for the pseudogap in cuprates46 and much discussed recently in Sr2IrO4 as a possible origin of the hidden order. Below, we have summarized the previous reports based on second harmonic generation (SHG)40,47, polarized neutron diffraction (PND)41, torque magnetometry (TM)42, and elastoresistance (ER)42 measurements, and compared them with our results.
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