Dynamic nuclear polarisation by thermal mixing: quantum theory and macroscopic simulations

Literature Information

Publication Date 2016-10-14
DOI 10.1039/C6CP04345C
Impact Factor 3.676
Authors

Alexander Karabanov, Grzegorz Kwiatkowski, Carlo U. Perotto, Daniel Wiśniewski, Jonathan McMaster, Walter Köckenberger


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Abstract

A theory of dynamic nuclear polarisation (DNP) by thermal mixing is suggested based on purely quantum considerations. A minimal 6-level microscopic model is developed to test the theory and link it to the well-known thermodynamic model. Optimal conditions for the nuclear polarization enhancement and effects of inhomogeneous broadening of the electron resonance are discussed. Macroscopic simulations of nuclear polarization spectra displaying good agreement with experiments, involving BDPA and trityl free radicals, are presented.

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DOI: 10.1039/B001778G

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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