Diffusion slowdown in the nanostructured liquid Ga‐Sn alloy
Diffusion slowdown in the nanostructured liquid Ga‐Sn alloy
复制标题
纳米结构液态 GaâSn 合金中的扩散减慢
DOI:
10.1002/andp.201400174
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发表时间:
2015
影响因子:
2.4
通讯作者:
A. V. Fokin
中科院分区:
文献类型:
--
作者:
D. Y. Podorozhkin;E. V. Charnaya;M. K. Lee;L.-J. Chang;J. Haase;D. Michel;Y. A. Kumzerov;A. V. Fokin
The diffusion of gallium in liquid Ga‐Sn alloy embedded into different porous silica matrices was studied by NMR. Spin relaxation was measured for two gallium isotopes,71Ga and69Ga, at two magnetic fields. Pronounced rise of quadrupole contribution to relaxation was observed for the nanostructured alloy which increased with decreasing the pore size. The correlation time of atomic mobility was evaluated and found to be much larger than in the relevant bulk melt which evidenced a pronounced diffusion slowdown in the Ga‐Sn alloy under nanoconfinement. It is shown that the diffusion was slower by a factor of 30 for the alloy within 7 nm pores. The spectral densities of electric field gradients at zero frequency were found to double for the finest pores. The Knight shift was found to decrease but slightly for the nanostructured alloy.
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DOI:
--
发表时间:
1971
期刊:
影响因子:
--
作者:
J. Winter
通讯作者:
J. Winter
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
D. Quitmann
通讯作者:
D. Quitmann
影响因子:
2.9
作者:
BOSSE, J;QUITMANN, D;WETZEL, C
通讯作者:
WETZEL, C
影响因子:
3.7
作者:
E. Charnaya;C. Tien;W. Wang;Min;D. Michel;D. Yaskov;S. Y. Sun;Yu. A. Kumzerov
通讯作者:
Yu. A. Kumzerov
影响因子:
4.4
作者:
HUBBARD, PS
通讯作者:
HUBBARD, PS