NMR studies of metallic tin confined within porous matrices

E. V. Charnaya; Cheng Tien; M. K. Lee; Yu A. Kumzerov

doi:10.1103/PhysRevB.75.144101

NMR studies of metallic tin confined within porous matrices

E. V. Charnaya, Cheng Tien, M. K. Lee, Yu A. Kumzerov

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Abstract

Sn119 NMR studies were carried out for metallic tin confined within synthetic opal and porous glass. Tin was embedded into nanoporous matrices in the melted state under pressure. The Knight shift for liquid confined tin was found to decrease with decreasing pore size. Correlations between NMR line shapes, Knight shift, and pore filling were observed. The melting and freezing phase transitions of tin under confinement were studied through temperature dependences of NMR signals upon warming and cooling. Melting of tin within the opal matrix agreed well with the liquid skin model suggested for small isolated particles. The influence of the pore filling on the melting process was shown.

Original language	English
Article number	144101
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	75
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.75.144101
Publication status	Published - 2007 Apr 4

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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