Two-electron two-nucleus effective Hamiltonian and the spin diffusion barrier

G von Witte, S Kozerke, M Ernst - Science Advances, 2025 - science.org
Dynamic nuclear polarization (DNP) and emerging quantum technologies rely on the spin
transfer in electron-nuclear hybrid quantum systems. Spin transfers might be suppressed by …

Observation of dynamic nuclear polarization echoes

N Wili, AB Nielsen, JP Carvalho, NC Nielsen - Science Advances, 2024 - science.org
It is demonstrated that the time evolution of the electron-nuclear polarization transfer process
during pulsed dynamic nuclear polarization (DNP) can be reversed on a microsecond …

Indirect Detection of the Protons in and around Biradicals and their Mechanistic Role in MAS-DNP

S Chatterjee, FJ Scott, ST Sigurdsson… - The Journal of …, 2024 - ACS Publications
The contribution of protons in or near biradical polarizing agents in Dynamic Nuclear
Polarization (DNP) has recently been under scrutiny. Results from selective deuteration and …