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Self-Diffusion Slowdown in Liquid Indium and Gallium under Confinement

1. Introduction When liquids are embedded into nanoporous matrices their physical properties can be affected by confinement conditions. In particular, the self-diffusion process within nanopores was shown to alter noticeably compared to bulk for many inorganic and organic liquids. Our recent NMR studies showed that atomic mobility in liquid indium and gallium embedded into nanoporous matrices is also strongly influenced by confinement leading to drastic slowdown of self-diffusion compared to that in bulk melts. The slowdown of atomic mobility manifests itself as acceleration of nuclear spin relaxation for confined liquid indium and gallium caused by enhancement of the quadrupole contribution to total relaxation.