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Title: | Multiscale modelling of Schottky-barrier MOSFETs with disilicide source/drain contacts: Role of contacts in the carrier injection |
Authors: | Dubois, Mathieu; Jiménez, David; Andrés, Pedro L. de CSIC ORCID CVN; Roche, Stephan CSIC ORCID | Keywords: | Ballistic Electron Emission Microscopy MOSFET |
Issue Date: | 2007 | Publisher: | American Physical Society | Citation: | Phys. Rev. B 76, 115337 (2007) | Abstract: | We report on a multiscale approach for the simulation of electrical characteristics of metal disilicide based Schottky-barrier metal oxide semiconductor field-effect transistors (SB-MOSFETs). Atomistic tight-binding method and non-equilibrium Greens function formalism are combined to calculate the propagation of charge carriers in the metal and the charge distribution at the MSi2(111)/Si(111) and MSi2(111)/Si(100) (with M=Ni, Co, and Fe) contacts. Quantum transmission coefficients at the interfaces are then computed accounting for energy and momentum conservation, and are further used as input parameters for a compact model of SB-MOSFET current-voltage simulations. In the quest for nanodevice performance optimization, this approach allows unveiling the role fo different materials in configurations relevant for heterostructure nanowires. | URI: | http://hdl.handle.net/10261/2760 |
Appears in Collections: | (ICMM) Artículos |
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