Lateral engineering of surface states: towards surface state nanoelectronics oral.

Content Provider	CiteSeerX
Author	Ortega, J. E. Cordón, J. Schiller, F. Ruiz-Osés, M. Abajo, F. J. García De
Abstract	The search for information carriers that can be manipulated faster, and consequently at smaller scales, is rapidly evolving from electrons and microelectronics towards photons and photonics. The latter can couple to collective excitations on metallic surfaces known as plasmons that are controllable by surface features on the scale of the wavelength, typically in the order of a fraction of the micron. In this work we demonstrate that electronic surface states on metal surfaces share some of the advantages of plasmons, while their in-plane wavelength is of the order of a few nanometers and their expected response time is faster than the femtosecond. By analogy to plasmonics, we can prove a new concept of surface-state nanoelectronics, where the flow of signal carriers (surface states) can be molded by structures such as steps and nanostructure arrays. Periodically structured surfaces illustrate the possibilities of using plasmons by designing plasmonic band structures, including guiding through channels open in the two-dimensional structures at gap energies [1]. Plasmons on flat surfaces are governed by the wave equation: 2 + k
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Subject Keyword	Towards Surface State Nanoelectronics Oral Lateral Engineering Surface State Structured Surface New Concept Wave Equation Electronic Surface State Gap Energy Surface-state Nanoelectronics Surface Feature Metal Surface Share Metallic Surface Microelectronics Towards Photon Flat Surface Two-dimensional Structure Information Carrier Plasmonic Band Structure Signal Carrier In-plane Wavelength Collective Excitation Response Time Nanostructure Array
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