Thermal Relaxation of Non-equilibrium Electrons in Nanowires

نویسندگان

  • M. Nedjalkov
  • D. Vasileska
  • K. Raleva
چکیده

A Wigner function model of early time carrierphonon dynamics of non-equilibrium carriers confined in nanowire is explored. The presented simulation results reveal effects of collisional broadening, retardation, ultrafast spatial transfer and the intracollisional field effect. These effects characterize thermal relaxation processes which are beyond the Boltzmann assumptions for temporal and spatial locality of scattering.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Non-linear Thermo-mechanical Bending Behavior of Thin and Moderately Thick Functionally Graded Sector Plates Using Dynamic Relaxation Method

In this study, nonlinear bending of solid and annular functionally graded (FG) sector plates subjected to transverse mechanical loading and thermal gradient along the thickness direction is investigated. Material properties are varied continuously along the plate thickness according to power-law distribution of the volume fraction of the constituents. According to von-Karman relation for large ...

متن کامل

Transient thermal and nonthermal electron and phonon relaxation after

Several dynamic thermal and nonthermal scattering processes affect ultrafast heat transfer 7 in metals after short-pulsed laser heating. Even with decades of measurements of electron8 phonon relaxation, the role of thermal vs. nonthermal electron and phonon scattering on 9 overall electron energy transfer to the phonons remains unclear. In this work, we derive 10 an analytical expression for th...

متن کامل

Modeling of Thermodiffusion Inertia in Metal Films Heated with Ultrashort Laser Pulses

Previously, we considered the analytical solution of nonlinear diffusion equation in two-dimensional surface. This allows us to consider the same nonlinear heat conduction equation for metals heated by a picosecond laser. After fast thermalization (within a few femtoseconds) of the laser energy and electron excitation in the conductivity band, electrons ballistically diffuse and transfer their ...

متن کامل

Using Activated Transport in Parallel Nanowires for Energy Harvesting and Hot Spot Cooling

We study arrays of parallel doped semiconductor nanowires in a temperature range where the electrons propagate through the nanowires by phonon-assisted hops between localized states. By solving the random-resistor-network problem, we compute the thermopower S, the electrical conductance G, and the electronic thermal conductance Ke of the device. We investigate how those quantities depend on the...

متن کامل

Modulational instability of dust ion acoustic waves in astrophysical dusty plasmas with non thermal electrons

  Propagation of dust ion acoustic waves in plasmas composed of nonthermal distributed electrons and stationary dust particles is investigated. Nonlinear Schrdinger equation is derived to describe small amplitude waves, using the reduction perturbation technique. Modulation instability of dust ion acoustic waves is analysed for this system. Parametric investigation indicates that growth rate of...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007