Speedup of nuclear spin diffusion in hyperpolarized solids

Dynamic nuclear polarization and spin-diffusion in non-conducting solids

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 ...

Hyperpolarized long-lived nuclear spin states in monodeuterated methyl groups.

Monodeuterated methyl groups may support a long-lived nuclear spin state, with a relaxation time exceeding the conventional spin-lattice relaxation time T1. Dissolution-DNP (dynamic nuclear polarization) may be used to hyperpolarize such a long-lived spin state. This is demonstrated for the CH2D groups of a piperidine derivative. The polarized sample is manipulated in the ambient magnetic field...

Spin Diffusion gd Orientation Dependence of Deuterium Tl in Solids

The study of spin diffusion in solids has been of recent interest. Spin diffusion occurs by flip-flop cross-relaxation due to the S$Sj_ + S!Sj, term of the dipolar couplings among the spins (I). When a large inhomogeneous interaction also exists for the S spin system, then the flip-flop transition may not conserve energy, i.e., the resonances of the coupled spins do not overlap and are separate...

Simulstion of Gas Diffusion in Capillaries and Porous Solids

NMR Quantum Computation with a hyperpolarized nuclear spin bulk

We consider two new quantum gate mechanisms based on nuclear spins in hyperpolarized solid Xe and HCl mixtures and inorganic semiconductors. We propose two schemes for implementing a controlled NOT ( CNOT ) gate based on nuclear magnetic resonance ( NMR ) spectroscopy and magnetic resonance imaging ( MRI ) from hyperpolarized solid Xe and HCl mixtures and optically pumped NMR in semiconductors....