Spin-lattice relaxation enhancement in liquid gallium confined within nanoporous matrices

Autor:	Yu. A. Kumzerov, E. V. Charnaya, T. Loeser, Dieter Michel, D. Yaskov, Cheng Tien
Předmět:	Physics::Fluid Dynamics Larmor precession Materials science Isotopes of gallium Nuclear magnetic resonance Condensed matter physics Nanoporous Relaxation (NMR) Spin–lattice relaxation General Physics and Astronomy Liquid gallium Nuclear Experiment Electric field gradient
Zdroj:	Scopus-Elsevier
Popis:	Nuclear spin relaxation for liquid gallium embedded into nanoporous matrices was found to accelerate remarkably compared to the bulk melt. NMR measurements on two gallium isotopes showed that the dominant mechanism of relaxation was changed from magnetic to quadrupolar and the relation rate depended on the Larmor frequency. The correlation time of electric field gradient fluctuations was estimated using data for quadrupolar relaxation contribution and was found to increase drastically compared to bulk, which corresponded to slowing down mobility in confined liquid gallium.
Databáze:	OpenAIRE
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