cross-polarisation magic angle spinning 29Si cross-polarisation magic angle spinning silicon-29 cross-polarisation magic angle spinning 29Si cross-polarisation magic angle spinning nuclear magnetic resonance spectroscopy https://orcid.org/0000-0001-5985-7429 29Si cross polarization magic angle spinning nuclear magnetic resonance spectroscopy CHMO:0002075 29Si CP-MAS 29Si cross polarisation magic angle spinning 29Si cross polarisation magic angle spinning nuclear magnetic resonance spectroscopy 29Si CP/MAS 29Si cross-polarization magic angle spinning 29Si cross-polarization magic angle spinning nuclear magnetic resonance spectroscopy 29Si CPMAS 29Si CPMAS NMR A type of NMR spectroscopy using a solid sample. Anisotropic interactions between nuclei, which are usually averaged by Brownian motion in liquid samples, cause significant line broadening in solid state NMR, but can be averaged to zero by spinning the sample very rapidly at the magic angle (54.74° with respect to the direction of the magnetic field). Cross polarisation is used to enhance the signal from weakly coupled nuclei such as 29Si nuclei. 29Si CP-MAS NMR 2009-07-02T02:24:00Z 29Si cross polarization magic angle spinning 29Si CP/MAS NMR