Nuclei in Cooperation

Nuclear Ordering in Lithium and an Upper Limit on its Ambient Pressure Superconducting Transition Temperature

“…1. In applied field, the increasing polarization shifts the peak toward higher frequencies, which is an effect of the dipolar interaction [13]. The shoulder at the highest polarizations between 10 -15 kHz is due to the double-spin mode [13].…”

“…7 Li, 92.5% abundant with a spin 3=2, is an excellent target for NMR studies due to its reasonably large magnetic moment 7 3:26 N . The remaining 7.5% of 6 Li, with I 6 1 and 6 0:82 N , do not contribute much to the magnetic behavior, but can be used as a probe in analyzing the interactions between the nuclear spins [13].…”