Home › Forums › Hyperfine course › electric quadrupole interaction › quadrupole operator › Axial symmetry of EFG tensor This topic has 0 replies, 1 voice, and was last updated 1 month, 3 weeks ago by nvrafelg. Viewing 1 post (of 1 total) Author Posts March 14, 2025 at 11:01 pm #6398 nvrafelgParticipant 1. If eta = 0, the tensor has axial symmetry. This happens when V_xx = V_yy. 2. The electrons causing the EFG are situated on the z-axis so rotating around the z-axis does not change anything. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In