Effects of Non-Resonant Oscillating Field on NMR in the Rotating Frame: Modification of Zeeman Energy and Related Phenomena

Abstract

Modification of the Zeeman energy by the non-resonant oscillating field in the rotating frame is observed in NMR’s of condensed matters. Corresponding modification of the energy matching condition of the nuclear double resonance in the rotating frame is investigated. Observation of rotary echoes formed by the application of the non-resonant oscillating field is also reported. In the analysis, the effects of the non-resonant oscillating field are treated semi-classically.