Crossover from diffusive to ballistic transport as a function of frequency in a two dimensional electron gas

作者: Sungmu Kang , P.J. Burke , L.N. Pfeiffer , K.W. West

DOI: 10.1109/ISDRS.2003.1272059

关键词: PhysicsBallistic conductionScatteringBallistic conduction in single-walled carbon nanotubesElectric fieldElectron transport chainElectronCondensed matter physicsRange (particle radiation)Omega

摘要: Ballistic transport is nothing but an electron in the limit (/spl omega//spl tau//sub m/ > 1); move without scattering between electric field cycles. Diffusive can be defined as lower frequency range m/<1); diffusive there are many events Here we measure for first time crossover from to ballistic a function of dc contacted 2DEG.

参考文章(5)
P. J. Burke, I. B. Spielman, J. P. Eisenstein, L. N. Pfeiffer, K. W. West, High frequency conductivity of the high-mobility two-dimensional electron gas Applied Physics Letters. ,vol. 76, pp. 745- 747 ,(2000) , 10.1063/1.125881
M. Lundstrom, Z. Ren, Essential physics of carrier transport in nanoscale MOSFETs IEEE Transactions on Electron Devices. ,vol. 49, pp. 133- 141 ,(2002) , 10.1109/16.974760
M.S. Shur, Low ballistic mobility in submicron HEMTs IEEE Electron Device Letters. ,vol. 23, pp. 511- 513 ,(2002) , 10.1109/LED.2002.802679
M.S. Shur, Jian-Qiang Lu, Terahertz sources and detectors using two-dimensional electronic fluid in high electron-mobility transistors IEEE Transactions on Microwave Theory and Techniques. ,vol. 48, pp. 750- 756 ,(2000) , 10.1109/22.841969
P.J. Burke, An RF circuit model for carbon nanotubes IEEE Transactions on Nanotechnology. ,vol. 2, pp. 55- 58 ,(2003) , 10.1109/TNANO.2003.808503