Coulomb promotion of spin-dependent tunneling
Artikel i vetenskaplig tidskrift, 2005

We study transport of spin-polarized electrons through a magnetic single-electron transistor (SET) in the presence of an external magnetic field. Assuming the SET to have a nanometer size central island with a single-electron level we find that the interplay on the island between coherent spin-flip dynamics and Coulomb interactions can make the Coulomb correlations promote rather than suppress the current through the device. We find the criteria for this new phenomenon-Coulomb promotion of spin-dependent tunneling-to occur. © 2005 The American Physical Society.

Electromagnetic wave polarization

Correlation methods

Electron tunneling

Magnetic fields




Leonid Gorelik

Chalmers, Teknisk fysik, Kondenserade materiens teori

Sergeij I. Kulinich

Göteborgs universitet

Robert I. Shekhter

Göteborgs universitet

Mats Jonson

Göteborgs universitet

V. M. Vinokur

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 95 11 116806-