Study of Interface-Roughness Scattering Effects on Nonlinear Electron Transport in a Superlattice by Using Generalized Boltzmann Transport Equation

ORAL

Abstract

We have proposed an effective scattering-potential approach is for treating interface-roughness scattering of drifting electrons within a superlattice. By using an effective scattering potentials, we have developed a quasi-1D generalized Boltzmann transport equation iincluding a self-consistent internal scattering force. We have presented the dependence of a steady-state current on interface-roughness parameters at various temperatures and DC electric-field strengths based on calculated nonequilibrium electron occupation function. Our study has reveled the microscopic mechanism behind non-ohmic transport behavior by analyzing numerically computed nonequilibrium electron occupation function and its dependence on interface roughness parameters as well as the DC electric field strength.

* D.H. would like to acknowledge the financial supports from the Air Force Office of Scientific Research (AFOSR). G.G. would like to acknowledge Grant No. FA9453-21- 1-0046 from the Air Force Research Laboratory (AFRL). T.-N.D. would like to thank the NSTC of Taiwan for the support through Grant No. MOST 111-2811-M-006-009. T.-N.D. would also like to thank the NSTC of Taiwan for the support through Grant No. MOST 111-2811-M-006-009.

–

Publication: [1] J. R. Gulley and D. H. Huang, Opt. Express 27, 17154 (2019).
[2] D. H. Huang, S. K. Lyo, and G. Gumbs, Phys. Rev. B 79, 155308 (2009).
[3] P.-H. Shih, D. H. Huang, G. Gumbs, T.-N. Do, C. P. Morath, and T. D. Maestas, Phys. Rev. B 108, 165304 (2023).

Presenters

  • Danhong Huang

    Air Force Research Lab - Kirtland

Authors

  • Danhong Huang

    Air Force Research Lab - Kirtland