Current shot noise characteristics in resonant tunneling step-barrier structures
作者： Rui Zhu , Yong Guo
DOI: 10.1063/1.2798515
关键词: Scattering 、 Physics 、 Noise (electronics) 、 Condensed matter physics 、 Quantum noise 、 Electronic band structure 、 Shot noise 、 Fermi level 、 Fano factor 、 Quantum tunnelling
摘要: The current shot noise behavior in resonant tunneling step-barrier structures is investigated based on the standard scattering approach. relations between and applied bias, Fermi energies, as well structural parameters are revealed. By making a comparison of among single square-barrier structures, double-barrier distinct curve shape extremely large suppression revealed structures. It shown that valley occurs at bias where peak locates Fano factor drops down to minimum bottom. also found larger for chemical potentials maximal with close 0.05 appears particular structure configuration. These results helpful improve signal-to-noise ratio quantum devices resonant-tunn...
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sci-hub.se 参考文章(43)
Physics and applications of quantum wells and superlattices Plenum Press. ,(1987) , 10.1007/978-1-4684-5478-9
A. L. Xavier, M. A. M. de Aguiar, Phase-Space Approach to the Tunnel Effect: A New Semiclassical Traversal Time Physical Review Letters. ,vol. 79, pp. 3323- 3326 ,(1997) , 10.1103/PHYSREVLETT.79.3323
A. Reklaitis, L. Reggiani, Monte Carlo study of shot-noise suppression in semiconductor heterostructure diodes Physical Review B. ,vol. 60, pp. 11683- 11693 ,(1999) , 10.1103/PHYSREVB.60.11683
K. E. Nagaev, Long-range Coulomb interaction and frequency dependence of shot noise in mesoscopic diffusive contacts Physical Review B. ,vol. 57, pp. 4628- 4634 ,(1998) , 10.1103/PHYSREVB.57.4628
G Muralidharan, DM Nicholson, S Rajic, TM Daniels-Race, H Li, T Thundat, PG Datskos, None, An atomic force microscope-based investigation of vertical transport through GaAs/GaAlAs/InAlAs/GaAs step-barrier heterostructures Ultramicroscopy. ,vol. 91, pp. 133- 138 ,(2002) , 10.1016/S0304-3991(02)00092-X
John H. Davies, Per Hyldgaard, Selman Hershfield, John W. Wilkins, Classical theory for shot noise in resonant tunneling Physical Review B. ,vol. 46, pp. 9620- 9633 ,(1992) , 10.1103/PHYSREVB.46.9620
V. I. Kozub, A. M. Rudin, Shot noise in mesoscopic diffusive conductors in the limit of strong electron-electron scattering. Physical Review B. ,vol. 52, pp. 7853- 7856 ,(1995) , 10.1103/PHYSREVB.52.7853
V. Ya. Aleshkin, L. Reggiani, M. Rosini, Comparative analysis of sequential and coherent tunneling models in resonant diodes Physical Review B. ,vol. 73, pp. 165320- ,(2006) , 10.1103/PHYSREVB.73.165320
K.-M. Hung, G. Y. Wu, Noise characteristics of ultrasmall resonant-tunneling structures. Physical Review B. ,vol. 48, pp. 14687- 14689 ,(1993) , 10.1103/PHYSREVB.48.14687
Yong Guo, Bing-Lin Gu, Zhong Zeng, Yoshiyuki Kawazoe, Size effect on quasibound states and negative differential resistances in step-barrier structures Physics Letters A. ,vol. 261, pp. 114- 118 ,(1999) , 10.1016/S0375-9601(99)00568-X