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From Nearly Free Electron States to Two Dimensional Electron Gas in Free Space
SM Ghulam Abbas,ZHAO Songtao #,LI Zhenyu *
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
*Correspondence author
#Submitted by
Funding: Specialized Research Fund for the Doctoral Program of Higher Education (No.Grant Nos. 20133402110035)
Opened online:18 May 2017
Accepted by: none
Citation: SM Ghulam Abbas,ZHAO Songtao,LI Zhenyu.From Nearly Free Electron States to Two Dimensional Electron Gas in Free Space[OL]. [18 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4733131
Nearly free electron like states (NFE) are counterparts of the image potential states floating on the surfaces of low dimensional materials. The exotic nuclear scattering free transport associated with them is realized extensively by both computationally and experimentally. These states exist as unoccupied part of the band some eV above the Fermi level. But, it is possible to draw NFE states to Fermi level either through chemical or electric imposed modifications. Unfortunately, in most cases doping usually destroys nuclear scattering free transport of NFE states, or employs complex gate systems. But this concept is now shifting to electride based design which remarkably resorts with two dimensional electron gas in free space (2DEG-FS). This short review, gives a pardigm shift of NFE states to 2DEG-FS with aid of theoretical designs and computational characterization.
Keywords:Physical Chemistry; Nearly free electron states (NFE); Electride; Two dimensional electron gas in free space (2DEG-FS).

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