Thermodynamics Properties of Mesoscopic Quantum Nanowire Devices
Attia A. AwadAlla1, Adel H. Phillips2
1Department of Physics, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt2Department of Physics and Department of Mathematics, Faculty of Engineering, Ain Shams University, Egypt
Thermodynamics Properties of Mesoscopic Quantum Nanowire Devices
Attia A. AwadAlla1;Adel H. Phillips2
1Department of Physics, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt2Department of Physics and Department of Mathematics, Faculty of Engineering, Ain Shams University, Egypt
摘要We investigate the thermodynamics properties of mesoscopic quantum nanowire devices, such as the effect of electron-phonon relaxation time, Peltier coefficient, carrier concentration, frequency of this field, and channel width. The influence of time-varying fields on the transport through such device has been taken into consideration. This device is modelled as nanowires connecting to two reservoirs. The two-dimensional electron gas in a GaAs--AlGaAs heterojunction has a Fermi wave length which is a hundred times larger than that in a metal. The results show the oscillatory behaviour of dependence of the thermo power on frequency of the induced field. These results agree with the existing experiments and may be important for electronic nanodevices.
Abstract：We investigate the thermodynamics properties of mesoscopic quantum nanowire devices, such as the effect of electron-phonon relaxation time, Peltier coefficient, carrier concentration, frequency of this field, and channel width. The influence of time-varying fields on the transport through such device has been taken into consideration. This device is modelled as nanowires connecting to two reservoirs. The two-dimensional electron gas in a GaAs--AlGaAs heterojunction has a Fermi wave length which is a hundred times larger than that in a metal. The results show the oscillatory behaviour of dependence of the thermo power on frequency of the induced field. These results agree with the existing experiments and may be important for electronic nanodevices.
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2007, Vol. 24 
