Atomic mobility in liquid gallium under nanoconfinement

E. V. Charnaya, Cheng Tien, W. Wang, Min-Kai Lee, D. Michel, D. Yaskov, S. Y. Sun, Yu A. Kumzerov

Research output: Contribution to journalArticle

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Abstract

Results of NMR studies of nuclear spin-lattice relaxation in liquid metallic gallium confined within random pore networks of two different porous glasses with 16 and 2 nm pore sizes are presented. The measurements were run in the temperature range from 330 K to confined gallium freezing. Relaxation for both gallium isotopes Ga71 and Ga69 was found to accelerate remarkably compared to the bulk melt, the dominant mechanism of relaxation changing from magnetic to quadrupolar. The correlation time of electric field gradient fluctuations caused by atomic motion was estimated at various temperatures using data for quadrupolar relaxation contribution and was found to increase drastically compared to bulk, which corresponded to a pronounced slowdown of atomic mobility in confined liquid gallium. The influence of confinement was more effective for smaller pore sizes. The temperature dependence of the correlation time for confined gallium was found to be noticeably stronger than in bulk, an additional slowdown of atomic mobility being observed at low temperatures.

Original languageEnglish
Article number035406
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number3
DOIs
Publication statusPublished - 2005 Jul 15

Fingerprint

atomic mobilities
Gallium
gallium
Liquids
liquids
Gallium Isotopes
porosity
Pore size
gallium isotopes
Temperature
Spin-lattice relaxation
Freezing
spin-lattice relaxation
nuclear spin
freezing
Electric fields
Nuclear magnetic resonance
Isotopes
Glass
gradients

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Charnaya, E. V. ; Tien, Cheng ; Wang, W. ; Lee, Min-Kai ; Michel, D. ; Yaskov, D. ; Sun, S. Y. ; Kumzerov, Yu A. / Atomic mobility in liquid gallium under nanoconfinement. In: Physical Review B - Condensed Matter and Materials Physics. 2005 ; Vol. 72, No. 3.
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Charnaya, EV, Tien, C, Wang, W, Lee, M-K, Michel, D, Yaskov, D, Sun, SY & Kumzerov, YA 2005, 'Atomic mobility in liquid gallium under nanoconfinement', Physical Review B - Condensed Matter and Materials Physics, vol. 72, no. 3, 035406. https://doi.org/10.1103/PhysRevB.72.035406

Atomic mobility in liquid gallium under nanoconfinement. / Charnaya, E. V.; Tien, Cheng; Wang, W.; Lee, Min-Kai; Michel, D.; Yaskov, D.; Sun, S. Y.; Kumzerov, Yu A.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 72, No. 3, 035406, 15.07.2005.

Research output: Contribution to journalArticle

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AU - Tien, Cheng

AU - Wang, W.

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AU - Sun, S. Y.

AU - Kumzerov, Yu A.

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