Spin diffusion

Spin diffusion is the continuous exchange of energy and magnetization between nuclear spins. Driven by dipolar coupling, it can reduce polarization differences more quickly than relaxation effects and is related to internuclear distances. In solid-state nuclear magnetic resonance, it has a major role in cross-polarization experiments, where magnetization transfer can reduce experimental time and increase signal-to-noise ratio. It has also been used in structural studies of polymers, glasses, small molecules, and proteins.

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Driving mechanism

Dipolar coupling

NMR role

Major role in cross-polarization experiments

Structural applications

Studies of polymers, glasses, small molecules, and proteins