Title :
Theory of fluctuations in non-equilibrium electron—hot-phonon system
Author :
Matulionis, A. ; Ramonas, M. ; Katilius, R. ; Gantsevich, S.V.
Author_Institution :
Center for Phys. Sci. & Technol., Semicond. Phys. Inst., Vilnius, Lithuania
Abstract :
A new type of correlation caused by fluctuations is resolved in coupled nonequilibrium (hot) electron-phonon system described by Boltzmann and Planck statistics. The kinetic equation for equal-time electron-phonon correlation function is obtained from the first principles by diagram technique. The correlation is demonstrated through Monte Carlo simulation of hot-electron-hot-phonon interaction in GaN subjected to a strong electric field. Hot-phonon lifetime can be obtained from hot-electron fluctuations.
Keywords :
III-V semiconductors; Monte Carlo methods; ab initio calculations; electron-phonon interactions; fluctuations; gallium compounds; hot carriers; statistics; wide band gap semiconductors; Boltzmann statistics; GaN; Monte Carlo simulation; Planck statistics; equal-time electron-phonon correlation function; first principles calculation; fluctuations; hot-electron fluctuations; hot-phonon lifetime; kinetic equation; nonequilibrium electron-hot-phonon system; Correlation; Electric fields; Equations; Fluctuations; Kinetic theory; Monte Carlo methods; Phonons; GaN; electron velocity fluctuations; hot electrons; hot phonons; theory of fluctuations;
Conference_Titel :
Noise and Fluctuations (ICNF), 2011 21st International Conference on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4577-0189-4
DOI :
10.1109/ICNF.2011.5994298
