Understanding DNP : Insights from Average Hamiltonian Theory
During the 90th session of the Global NMR Discussion Meetings held on October 22nd, 2024 via Zoom, Prof. Sheetal Kumar Jain from the Indian Institute of Science, Bengaluru, India, gave a talk on the topic "Understanding Dynamic Nuclear Polarization: Insights from Average Hamiltonian Theory". The recording serves as a tutorial.
Abstract: Average Hamiltonian Theory (AHT) effectively explains the mechanisms, efficiencies, and optimal conditions for solid-state NMR pulse sequences. In Dynamic Nuclear Polarization (DNP), AHT describes how electron-nuclear spin couplings drive polarization transfer under microwave irradiation. By simplifying spin dynamics, AHT offers insights into polarization mechanisms like the solid effect, cross effect, and pulsed DNP, helping predict conditions to maximize nuclear spin polarization and enhance NMR signal sensitivity.
Find out more about Prof. Sheetal Kumar Jain's research: https://sscu.iisc.ac.in/sheetal-kumar-jain/