Coupled force-balance and particle-occupation rate equations for high-field electron transport
- Department of Physics, Shanghai Jiaotong University, 1954 Huashan Road, Shanghai 200030 (China)
It is pointed out that in the framework of balance-equation approach, the coupled force-balance and particle-occupation rate equations can be used as a complete set of equations to determine the high-field transport of semiconductors in both strong and weak electron-electron interaction limits. We call to attention that the occupation rate equation conserves the total particle number and maintains the energy balance of the relative electron system, and there is no need to introduce any other term in it. The addition of an energy-drift term in the particle-occupation rate equation [Phys. Rev. B 71, 195205 (2005)] is physically inadequate for the violation of the total particle-number conservation and the energy balance. It may lead to a substantial unphysical increase of the total particle number by the application of a dc electric field.
- OSTI ID:
- 21070012
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 77, Issue 3; Other Information: DOI: 10.1103/PhysRevB.77.033203; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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