cross-polarisation magic angle spinning 89Y cross-polarisation magic angle spinning 89Y cross polarization magic angle spinning nuclear magnetic resonance spectroscopy 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 89Y nuclei. 89Y CP-MAS ytterbium-89 cross-polarisation magic angle spinning 2009-09-30T01:23:56Z 89Y cross-polarisation magic angle spinning nuclear magnetic resonance spectroscopy 89Y cross polarisation magic angle spinning 89Y CPMAS NMR https://orcid.org/0000-0001-5985-7429 89Y cross polarisation magic angle spinning nuclear magnetic resonance spectroscopy 89Y cross-polarization magic angle spinning nuclear magnetic resonance spectroscopy 89Y cross-polarization magic angle spinning CHMO:0002492 89Y CP/MAS 89Y CPMAS 89Y CP-MAS NMR 89Y cross polarization magic angle spinning 89Y CP/MAS NMR