A method for atomic-level noncontact thermometry with electron energy distribution
A method for atomic-level noncontact thermometry with electron energy distribution
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DOI：
10.7567/jjap.56.048004
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发表时间：
2017-04-01
影响因子：
1.5
通讯作者：
Ishii, Juntaro
中科院分区：
文献类型：
--
作者：
Kinoshita, Ikuo;Ouchi, Chiharu Tsukada Kohei;Ishii, Juntaro
我们设计了一种通过材料的电子能量分布来确定材料温度的新方法。将与高斯和洛伦兹分布的线性组合卷积的费米-狄拉克分布拟合到在液态 N-2 冷却温度下测量的 Au(110) 单晶表面的光电子能谱。该拟合成功地从光电子能谱中同时确定了表面局域热力学温度和能量分辨率，而无需其他测量的任何初步结果。确定的热力学温度为 99 +/- 2.1 K，这与使用连接到样品架的硅二极管传感器测量的参考温度 98.5 +/- 0.5K 非常一致。 (C) 2017 日本应用物理学会
We devised a new method of determining the temperatures of materials with their electron-energy distributions. The Fermi-Dirac distribution convoluted with a linear combination of Gaussian and Lorentzian distributions was fitted to the photoelectron spectrum measured for the Au(110) single-crystal surface at liquid N-2-cooled temperature. The fitting successfully determined the surface-local thermodynamic temperature and the energy resolution simultaneously from the photoelectron spectrum, without any preliminary results of other measurements. The determined thermodynamic temperature was 99 +/- 2.1 K, which was in good agreement with the reference temperature of 98.5 +/- 0.5K measured using a silicon diode sensor attached to the sample holder. (C) 2017 The Japan Society of Applied Physics