2025/06/27 by Kohei Suzuki, Suzuki, Kohei, Kazuyuki Takeda +1
Chemistry · Engineering · Physics and Astronomy · #Advanced NMR Techniques and Applications #Atomic and Subatomic Physics Research #Electromagnetic Effects on Materials #FOS: Physical sciences #Other Condensed Matter (cond-mat.other) #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.2506.21916
openalex publication_date 2025/06/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Nuclear spins' dipolar order is created under magic angle spinning through the first-order process made possible by simultaneous implementation of dipolar recoupling and adiabatic demagnetization in a reference frame reached out through nested transformations, firstly from the laboratory frame into the rotating frame, and then into the spin coordinate system nutating inside its parent frame. In such a nutating frame, both the static and resonantly rotating radio-frequency (RF) fields are invisible, and the re-introduced dipolar interaction provides a secular eigenstate on which dipolar order develops with assist of an additional portion of RF field designed to implement adiabatic demagnetization in the nutating frame.