Abstract
In an adiabatic implementation of polarization-transfer methods, the Hamiltonian is changed in a slow and adiabatic way such that the density operator follows the Hamiltonian and commutes with it at every point in time. Adiabatic polarization transfer relies on a sweep through a resonance condition and is less sensitive to experimental parameters and spin-system parameters than conventional “sudden” experiments where the density operator evolves under a static Hamiltonian. In powder samples adiabatic experiments result in higher transfer efficiencies which can theoretically reach 100%. Keywords: MAS; homonuclear polarization transfer; adiabatic polarization transfer; rotational resonance; DREAM; cross polarization; C7
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