spectroscopy homepage › Forums › magnetic hff in sample › spectroscopy This topic has 0 replies, 1 voice, and was last updated 5 years, 1 month ago by Giel. Viewing 1 post (of 1 total) Author Posts April 16, 2018 at 9:02 pm #1301 Score: 0 GielParticipant The hyperfine field is smaller at 50K than at 18K. The sample is a ferromagnetic material, by lowering the temperature the spins allign. 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