Giant super-poissonian shot noise in spin-polarized SET structures

Giant super-poissonian shot noise in spin-polarized SET structures

Gorelik, L.Y. ; Kulinich, S.I. ; Shekhter, R.I. ; Jonson, M. ; Vinokur, V.M.

Тема: International Conference "Statistical Physics 2006. Condensed Matter: Theory and Application"

Інший ID: PACS: 73.23.–b, 73.40.Gk

URI: http://dspace.nbuv.gov.ua/handle/123456789/120931

Посилання: Giant super-poissonian shot noise in spin-polarized SET structures / L.Y. Gorelik, S.I. Kulinich, R.I. Shekhter, M. Jonson, V.M. Vinokur // Физика низких температур. — 2007. — Т. 33, № 9. — С. 997–1001. — Бібліогр.: 12 назв. — англ.

Підтримка: This work was supported in part by the European Commission through project FP6-003673 CANEL of the IST Priority. The views expressed in this publication are those of the authors and do not necessarily reflect the official European Commission’s view on the subject. Financial support from the Swedish SSF, the Swedish VR, and from the U.S. DOE Office of Science through contract No. W-31-109-ENG-38 is also gratefully acknowledged.

Дата: 2007

Завантажень: 430

Giant super-poissonian shot noise in spin-polarized SET structures

Анотація:

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.

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