Electric-field-enhanced electron capture coefficient of EL2 level in semi-insulating GaAs

Kiyama, M.; Tatsumi, M.; Yamada, M.
January 2005
Applied Physics Letters;1/3/2005, Vol. 86 Issue 1, p012102
Academic Journal
The electric-field dependence of electron capture coefficient to EL2 donor level in semi-insulating GaAs has been quantitatively determined from the analysis of the sublinear J–E characteristics up to 1150 V/cm before the onset of the low-frequency current oscillation. The three-probe guard-ring method was employed to obtain precise J–E characteristics. By considering the rate equation of the capture and emission process in the steady state, a simplified formula was derived to determine the electric-field dependence of capture coefficient. Our results agree well with those calculated from the multiphonon emission capture model.


Related Articles

  • Quantum chips get warmer.  // New Scientist;4/23/2005, Vol. 186 Issue 2496, p21 

    This article focuses on the obstacles to quantum computing. Quantum computers require particles such as electrons to be entangled, a special state in which what happens to one particle of a pair affects the other. But if the electrons being used in a computation become entangled with other...

  • Non-minimal coupling to a Lorentz-violating background and topological implications. Belich, H.; Costa-Soares, T.; Ferreira Jr., M. M.; Helayël-Neto, J. A. // European Physical Journal C -- Particles & Fields;Jun2005, Vol. 41 Issue 3, p421 

    The non-minimal coupling of fermions to a background responsible for the breaking of Lorentz symmetry is introduced in Dirac’s equation; the non-relativistic regime is contemplated, and the Pauli equation is used to show how an Aharonov-Casher phase may appear as a natural consequence of...

  • Polarization reversal of ferroelectric small particles: Surface polarization enhancement and bound charges effects. Baudry, Laurent // Applied Physics Letters;12/26/2005, Vol. 87 Issue 26, p262903 

    The polarization reversal mechanism in ferroelectric small particles with surface polarization enhancement has been theoretically investigated. The model based on a thermodynamical approach, in which the bound charges contribution has been included, predicts, as it does for polarization...

  • Relativistic Current Dynamics Investigations By Proton Probing. Borghesi, M.; Quinn, K.; Wilson, P. A.; Cecchetti, C. A.; Ramakrishna, B.; Romagnani, L.; Sarri, G.; Lancia, L.; Fuchs, J.; Pipahl, A.; Toncian, T.; Willi, O.; Carroll, D. C.; Gallegos, P.; Quinn, M. N.; Yuan, X. H.; McKenna, P.; Clarke, R. J.; Evans, R. G.; Neely, D. // AIP Conference Proceedings;7/25/2009, Vol. 1153 Issue 1, p319 

    The proton probing technique has been used to investigate the incidence of a mid-1019 W cm-2 pulse with metallic wire and laminar foam targets. Electric fields ∼1010 V·m-1 are measured on the surface of the 125 μm-diameter wire in the wake of the laser interaction as it charges and...

  • Pair-production in inhomogeneous electric fields. She-Sheng Xue // AIP Conference Proceedings;1/3/2008, Vol. 966 Issue 1, p213 

    This is a preliminary study on the rate of electron-positron pair production in spatially inhomogeneous electric fields. We study the rate in the Sauter field and compare it to the rate in the homogeneous field.

  • The dynamics of one-dimensional Bloch electrons in constant electric fields. Bentosela, F.; Duclos, P.; Moldoveanu, V.; Nenciu, G. // Journal of Mathematical Physics;Apr2005, Vol. 46 Issue 4, p043505 

    We study the dynamics of a one-dimensional Bloch electron subjected to a constant electric field. The periodic potential is supposed to be less singular than the δ-like potential (Dirac comb). We give a rigorous proof of Ao’s result that for a large class of initial conditions (high...

  • Transient-mode multipactor discharge. Graves, T. P.; Spektor, R.; Stout, P.; Axley, A. // Physics of Plasmas;Aug2009, Vol. 16 Issue 8, p083502 

    Multipactor discharge is a resonant condition in which electrons impact material surfaces in phase with an alternating rf or microwave electric field. A growing and/or sustained discharge requires the electrode secondary electron coefficient, δ(Ee), to be greater than unity at the impacting...

  • Behavior of an electron plasma in a thin metallic slab placed in a variable electric field. Berezkina, S. V.; Kuznetsova, I. A.; Yushkanov, A. A. // Technical Physics;May2006, Vol. 51 Issue 5, p533 

    The response of an electron plasma in a thin metallic slab to a variable electric field applied normally to the slab surface is studied in the framework of the kinetic theory. The radiation power absorbed by a unit surface area is calculated under the assumption that the electric field frequency...

  • Variable sensitivity of organic light-emitting diodes to operation-induced chemical degradation: Nature of the antagonistic relationship between lifetime and efficiency. Kondakov, Denis Y.; Young, Ralph H. // Journal of Applied Physics;Oct2010, Vol. 108 Issue 7, p074513 

    The efficiency of any organic light-emitting diode (OLED) decreases with prolonged operation. In fluorescent OLEDs containing the standard hole-transporting material NPB [N,N′-diphenyl-N,N′-bis(1-naphthyl)-1,1′-biphenyl-4,4′-diamine], prolonged operation also results in...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics