Low-loss EELS of 2D boron nitride

Low-loss EELS of 2D boron nitride
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二维氮化硼的低损耗 EELS

DOI:
10.1088/1742-6596/371/1/012060
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发表时间:
2012
期刊:
Conference Series
影响因子:
--
通讯作者:
Nicholls R
Nicholls R
中科院分区:
--
文献类型:
--
作者:
Nicholls R

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电子能量损失谱提供了一种材料介电功能的探针,该介电功能可能受到样品尺寸和形态的影响。本文研究了六方氮化硼还原成单层后对损耗函数的影响。先前预测的光谱红移在实验中看到,并通过使用密度泛函理论的建模再现。介电函数表明,对于单层,屏蔽的缺乏导致介电函数的真实的部分趋于1,使得损耗函数类似于介电函数的虚部。
Electron energy loss spectroscopy provides a probe of the dielectric function of a material which can be affected by the size and morphology of a sample. In this paper, the effect on the loss function when hexagonal boron nitride is reduced to a single layer is investigated. The previously predicted red-shift of the spectrum is seen in experiment and reproduced by modelling using density functional theory. The dielectric function shows that, for a single layer, the lack of screening causes the real part of the dielectric function to tend to 1 so that the loss function resembles the imaginary part of the dielectric function.
DOI: 10.1103/physrevb.61.13936
发表时间: 2000-05-15
期刊: PHYSICAL REVIEW B
影响因子: 3.7
作者:
Kociak, M;Henrard, L;Colliex, C
通讯作者: Colliex, C
DOI: 10.1126/science.1194975
发表时间: 2011-02-04
期刊: SCIENCE
影响因子: 56.9
作者:
Coleman, Jonathan N.;Lotya, Mustafa;Nicolosi, Valeria
通讯作者: Nicolosi, Valeria
利兹大学/谢菲尔德大学(英国)
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