Electron and nuclear spin dynamics in the thermal mixing model of dynamic nuclear polarization
نویسندگان
چکیده
منابع مشابه
Relevance of electron spin dissipative processes to dynamic nuclear polarization via thermal mixing.
The available theoretical approaches aiming at describing Dynamic Nuclear spin Polarization (DNP) in solutions containing molecules of biomedical interest and paramagnetic centers are not able to model the behaviour observed upon varying the concentration of trityl radicals or the polarization enhancement caused by moderate addition of gadolinium complexes. In this manuscript, we first show exp...
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Microwave irradiation of a coupled electron-nuclear spin system can facilitate a transfer of polarization from the electron to the nuclear spin. In dielectric materials dynamic nuclear polarization (DNP) typically occurs via the solid effect,thermal mixing or the cross effect. In these systems the electron spins are localized and the non-equilibrium polarization of the bulk nuclei is generated ...
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The novel meso-nucleo-spinics effect of the nuclear spin polarization induced periodic structure creation in a low-dimensional electron system is studied theoretically. It is shown that the periodically distributed nuclear magnetization results in the periodic hyperfine magnetic field which, in turn, creates a periodic electron structure. The electron wave functions and energy spectrum for such...
متن کاملThe electron depolarization during dynamic nuclear polarization: measurements and simulations.
Dynamic nuclear polarization is typically explained either using microscopic systems, such as in the solid effect and cross effect mechanisms, or using the macroscopic formalism of spin temperature which assumes that the state of the electrons can be described using temperature coefficients, giving rise to the thermal mixing mechanism. The distinction between these mechanisms is typically made ...
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ژورنال
عنوان ژورنال: Physical Chemistry Chemical Physics
سال: 2012
ISSN: 1463-9076,1463-9084
DOI: 10.1039/c2cp41947e