Abstract
The influence of a coherent tunnel effect on the magnetic hyperfine structure of a diluted paramagnetic ion, with an electronic ground state |S z = ±S > (S > 1/2), is studied under the assumptions of zero longitudinal magnetic field and slow electronic relaxation. It is shown that the radiofrequency and Mossbauer spectra should be altered, with a change in the number and intensities of the lines. When the tunnelling parameter, Γ, is large compared to the hyperfine structure, the magnetic hyperfine structure splitting should be strongly reduced and it should vanish for Γ → ∞. Tunnelling effects have already been observed in EPR experiments on Tb 3+ diluted in diamagnetic matrices. The cases of NMR with I = 3/2 and of Mossbauer spectroscopy for a transition I e = 3/2 → I g = 1/2 are considered.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
