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@ARTICLE{Bejenke:885584,
author = {Bejenke, Isabel and Zeier, Robert and Rizzato, Roberto and
Glaser, Steffen J. and Bennati, Marina},
title = {{C}ross-polarisation {ENDOR} for spin-1 deuterium nuclei},
journal = {Molecular physics},
volume = {118},
number = {18},
issn = {1362-3028},
address = {London},
publisher = {Taylor $\&$ Francis},
reportid = {FZJ-2020-03948},
pages = {e1763490 -},
year = {2020},
abstract = {Efficient transfer of spin polarisation from electron to
nuclear spins is emerging as a common target of several
advanced spectroscopic experiments, ranging from sensitivity
enhancement in nuclear magnetic resonance (NMR) and methods
for the detection of single molecules based on optically
detected magnetic resonance (ODMR) to hyperfine
spectroscopy. Here, we examine the feasibility of
electron-nuclear cross-polarisation at a modified
Hartmann-Hahn condition (called eNCP) for applications in
ENDOR experiments with spin-1 deuterium nuclei, which are
important targets in studies of hydrogen bonds in biological
systems and materials. We have investigated a two-spin model
system of deuterated malonic acid radicals in a single
crystal. Energy matching conditions as well as ENDOR signal
intensities were determined for a spin Hamiltonian under the
effect of microwave and radiofrequency irradiation. The
results were compared with numerical simulations and 94-GHz
ENDOR experiments. The compelling agreement between
theoretical predictions and experimental results
demonstrates that spin density operator formalism in
conjunction with suitable approximations in regard to spin
relaxation provides a satisfactory description of the
polarisation transfer effect. The results establish a basis
for future numerical optimizations of polarisation transfer
experiments using multiple-pulse sequences or shaped pulses
and for moving from model systems to real applications in
disordered systems.},
cin = {PGI-8},
ddc = {530},
cid = {I:(DE-Juel1)PGI-8-20190808},
pnm = {142 - Controlling Spin-Based Phenomena (POF3-142) / 522 -
Controlling Spin-Based Phenomena (POF3-522) / PASQuanS -
Programmable Atomic Large-Scale Quantum Simulation (817482)},
pid = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-522 /
G:(EU-Grant)817482},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000545166600001},
doi = {10.1080/00268976.2020.1763490},
url = {https://juser.fz-juelich.de/record/885584},
}