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In most solid-state NMR experiments, cross-polarization is an essential step to detect low-γ nuclei such as 13 C and 15 N. In this study, we present a new cross-polarization scheme using spin-locks composed of composite 0° pulses in the RF channels of high-γ and low-γ nuclei to establish the Hartmann–Hahn match. The composite 0° pulses with no net nutation-angle{(2π) X −(2π)...
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