Noble-gas nanoclusters with fivefold symmetry stabilized in superfluid helium.
Noble-gas nanoclusters with fivefold symmetry stabilized in superfluid helium.
复制标题
具有五重对称性的稀有气体纳米团簇在超流氦中稳定。
DOI：
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发表时间：
2007
影响因子：
8.6
通讯作者：
D. M. Lee
中科院分区：
文献类型：
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作者：
V. Kiryukhin;E. Bernard;V. Khmelenko;R. Boltnev;N. Krainyukova;D. M. Lee
通过杂质氦气注射技术在超流氦中产生惰性气体纳米团簇（尺寸约5-6 nm）的宏观样品（体积约cm(3)，原子密度约10(19) -10(20) cm(-3)）。 X 射线衍射测量表明，样品由具有五重对称性的弱相互作用纳米团簇组成，例如二十面体和十面体。这些结果为使用需要大量样品的实验技术在良好控制的环境中对惰性气体和其他材料的纳米团簇进行基础研究开辟了新的机会。
Macroscopic samples (volume approximately cm(3), atomic density approximately 10(19) -10(20) cm(-3)) of noble-gas nanoclusters (size approximately 5-6 nm) were produced in superfluid helium by an impurity-helium gas injection technique. X-ray diffraction measurements show that the samples consist of weakly interacting nanoclusters with fivefold symmetry, such as icosahedra and decahedra. These results open new opportunities for fundamental research of nanoclusters of noble gases and other materials in well-controlled environments using experimental techniques requiring bulk samples.