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Surface Effects in Photoemission Spectra of Na
並列摘要
Recent angle-resolved photoemission studies of Na reveal an anomalus structure for photon energy ranging from 30 to 40 eV. This anomaly corresponds to initial states close to the Fermi level. Also found in the spectra is that the bandwidth of Na appears to be 2.65 ± 0.05 eV, instead of 3.24 eV from most band calculations. It is suggested in this work that these experimental findings are results of effects due to surfaces and to the broadening of the electronic states. With these effects properly included, we could explain the presence of the anomalus structure at the Fermi level; we also found the apparent bandwidth from the calculated spectra to be 2.6 eV - in close agreement with the measurement. We believe the above-mentioned effects to be sufficiently general to be applicable to other materials. Recently, we have extended our studies to alkali-metal ad-layers on Al substrate and found reasonable results.
並列關鍵字
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- Tse, W. S., Nderson, A. A., & Torrie, B. H. (1982). Infrared Spectra of Crystalline HF and DF. Chinese Journal of Physics, 20(1&2), 56-62. https://www.airitilibrary.com/Article/Detail?DocID=05779073-198206-201304120028-201304120028-56-62
- Chou, H. Y. (2011). Modeling and Stabilization on Emission Spectra of Light-Emitting Diodes [doctoral dissertation, National Central University]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0031-1903201314431688
- Cheng, T. S., Wu, C. Y., & Chao, Y. C. (2006). Theoretical Study of Near-Infrared Absorption Spectra. Journal of Aeronautics, Astronautics and Aviation. Series A, 38(4), 233-240. https://doi.org/10.6125/JoAAA.200612_38(4).03
- 戴建弘（2008）。Emission spectra study of photolysis bromodichloromethane and related halomethane by 266 nm laser.〔碩士論文，國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-0207200917354293
- 邱韻如（2017）。Exploration of Physical Optics Experiment Teaching: Interference and Diffraction。物理教育學刊，18(2)，39-51。https://doi.org/10.6212/CPE.2017.1802.03