Spin-Lattice Relaxation of Dipolar Energy in Fluid Confined to Nanosize Cavities

Abstract:

We shown that by means of the two pulse sequence, the spin system of a liquid entrapped into nanosize cavities can be prepared in quasi-equilibrium states of high dipolar order. Then the dipolar order relaxes to thermal equilibrium with the lattice with a relaxation time T1d. It was shown that large number of spins T1d increases as the square to the concentration of the molecules C and decreases as inverse of the number of spins, T1d - C²/N. Study of spin lattice relaxation of dipolar energy in a spin system under the bounded region is important for extracting very useful parameter characterized nanomaterials from NMR experimental data.

• Periodical: Materials Science Forum (Volume 721)
• Pages: 47-52
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.721.47
• Online since: June 2012
• Authors: Gregory Furman, Shaul Goren
• Keywords: Dipolar Ordered State, Nanocavities, Nanopores

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