We have performed pulsed NMR experiments in superfluid 3He-B under conditions of high H0 and H1 homogeneity in order to study non-linear spin dynamics. We made extensive measurements near the "magic" tipping angle in order to measure its temperature dependence. We report the discovery of new effects, including a small negative frequency shift at tipping angles close to, but slightly less than the "magic" tipping angle. We also discuss the evolution of the precession frequency as the system relaxes after the RF pulse.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering