Giant super poissonian shot noise in spin-polarized SET structures
Artikel i vetenskaplig tidskrift, 2007

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-sized central island with a single electron level, we find that the zero-frequency shot noise diverges as the on-dot spin-flip rate goes to zero, provided the source and drain leads are completely polarized in the same direction. We present an analytical expression for the low-frequency super-Poissonian shot noise that allows one to specify the necessary conditions for the experimental observation of the phenomenon. (c) 2007 American Institute of Physics.

spintronics

single electron tunneling

shot noise

Författare

Leonid Gorelik

Chalmers, Teknisk fysik, Kondenserade materiens teori

Sergeij I. Kulinich

Robert I. Shekhter

Göteborgs universitet

Mats Jonson

Göteborgs universitet

V. M. Vinokur

Low Temperature Physics

Vol. 33 757-761

Ämneskategorier

Den kondenserade materiens fysik