Home › Forums › Hyperfine course › ERP › EPR on free atoms (1) › EPR La This topic has 0 replies, 1 voice, and was last updated 5 months, 2 weeks ago by DanteBouckhout. Viewing 1 post (of 1 total) Author Posts April 16, 2024 at 7:42 pm #5709 DanteBouckhoutParticipant When an atom is irradiated and absorbs a photon, this energy is stored in an opposing spin wrt the magnetic field. So the electron will go from a lower to a higher energy state (e.g. Mj: 1/2 -> Mj:-1/2) 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