Phys. Rev. B 68, 165344 (2003) [5 pages]Conductance fluctuations in the presence of spin scatteringReceived 8 April 2003; published 28 October 2003 Electron transport through disordered systems that include spin scatterers is studied numerically. We consider three kinds of magnetic impurities: the Ising, the XY, and the Heisenberg. By extending the transfer matrix method to include the spin degree of freedom, the two terminal conductance is calculated. The variance of conductance is halved as the number of spin components of the magnetic impurities increases. Application of the Zeeman field in the lead causes a further halving of the variance under certain conditions. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.68.165344
DOI:
10.1103/PhysRevB.68.165344
PACS:
73.23.-b, 72.25.Rb, 73.63.Nm
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.