Wigner transport models of the electron-phonon kinetics in quantum wires
نویسندگان
چکیده
M. Nedjalkov,1 D. Vasileska,2 D. K. Ferry,2 C. Jacoboni,3 C. Ringhofer,4 I. Dimov,5 and V. Palankovski1 1AMADEA Group, IμE, TU-Vienna, Gusshausstrasse 27-29/E360 A-1040 Vienna, Austria 2Department of Electrical Engineering, Arizona State University, Tempe, Arizona 85287-1804, USA 3University of Modena and Reggio Emilia, Via Campi 213/A, I-41100 Modena, Italy 4Department of Mathematics, Arizona State University, Tempe, Arizona 85287-1804, USA 5Institute for Parallel Processing, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria and ACET Centre, University of Reading, Whiteknights P.O. Box 217, Reading RG6 6AH, United Kingdom Received 17 April 2006; published 12 July 2006
منابع مشابه
Coherent electron-phonon coupling and polaron-like transport in molecular wires
We present a technique to calculate the transport properties through onedimensional models of molecular wires. The calculations include inelastic electron scattering due to electron-lattice interaction. The coupling between the electron and the lattice is crucial to determine the transport properties in one-dimensional systems subject to Peierls transition since it drives the transition itself....
متن کاملبهبود بازده تبدیل انرژی حالت جامد با استفاده از نانوساختارهای ترموالکتریک
Solid-state energy conversion technologies such as thermoelectric refrigeration and power generation require materials with low thermal conductivity yet high electrical conductivity and Seebeck coefficiency. Although semiconductors are the best thermoelectric materials, they rarely have the such features. Nanostructures such as superlattices, quantum wires, and quantum dots provide novel method...
متن کاملWigner Modelling of Quantum Wires
Aggressively scaled More Moore devices such as FDSOI FETs, FinFETs, and nanowire transistors are designed around the concept of spatial confinement, which challenges basic notions of electron transport, originally derived under the assumption of a bulk crystal. Confined electrons do not have a well-defined three-dimensional momentum and a continuous energy spectrum. Physical models with confine...
متن کاملThe Quantum Statistical Mechanical Theory of Transport Processes
A new derivation of the quantum Boltzmann transport equation for the Fermion system from the quantum time evolution equation for the wigner distribution function is presented. The method exhibits the origin of the time - irreversibility of the Boltzmann equation. In the present work, the spin dependent and indistinguishibility of particles are also considered.
متن کاملUltrafast Wigner transport in quantum wires
Two quantum-kinetic models, governing the transport of an initial highly non-equilibrium carrier distribution generated locally in a nanowire, are explored. Dissipation processes due to phonons govern the carrier relaxation, which at early stages of the evolution is characterized by the lack of energy conservation in the collisions. The models are analyzed and approached numerically by a backwa...
متن کامل