title: Solid echo in the slow-motion region. Effects of the finite pulse widths.
abstract: The effects of nonzero radio-frequency pulse widths on the echo signals in solids with molecular motions have been investigated. It has been shown that in the slow-motion region a time position and an amplitude of the echo signal depend not only on the width of the pulse, but also on the shape of potential wells and the correlation time, describing the molecular motion. A comparison of the developed theory with experimental results obtained for polycrystalline NH4Cl demonstrates a good agreement between them.
authors.affiliation: Faculty of Physics, Adam Mickiewicz University, Poznań, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Bilski
authors.forename: N A
authors.initials: NA
authors.lastname: Sergeev
authors.forename: J
authors.initials: J
authors.lastname: Wasicki
mesh_terms: D000643:Ammonium Chloride / Q000737:chemistry; D003198:Computer Simulation; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008962:Models, Theoretical; D015394:Molecular Structure; D009038:Motion; D011846:Radio Waves; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013696:Temperature
chemical_list: D000643:Ammonium Chloride