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08 August 2022
 
  » arxiv » cond-mat/0305066

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Shot noise of spin current
Baigeng Wang ; Jian Wang ; Hong Guo ;
Date 5 May 2003
Subject cond-mat
AbstractWe report an exact solution for the noise spectrum of spin-current without charge-current in a spin field effect transistor (SFET). For the SFET with two leads, it is found that both auto- and cross-correlation functions are needed to characterize the noise of spin-current. A shot noise is also generated for the charge-current even though the net charge-current is identically zero. The noise spectra of spin-current and charge-current depends on the coupling strength between the SFET and the leads, and they may behave qualitatively differently. We also present results of noise spectra in the adiabatic regime.
Source arXiv, cond-mat/0305066
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