ISSP - The institute for Solid State Physics

Seminar
Font Size: (S) / (M) / (L)
[ISSP Colloquiums]
Spin Filtering by a periodic nanospintronic device
Title : Spin Filtering by a periodic nanospintronic device
Date :
Time :
2008/10/1(Wed)
1:30 PM - 2:30 PM 
Place : Lecture Room (A632), 6th Floor, ISSP   
Lecturer : Prof. Amnon Aharony
Affiliation : Department of Physics, Ben Grion University (Beer Sheva, Israel)
Summary : For a linear chain of diamond-like elements, we show that the Rashba spin-orbit interaction (which can be tuned by a perpendicular gate voltage) and the Aharonov-Bohm flux (due to a perpendicular magnetic field) can combine to select only one propagating ballistic mode, for which the electronic spins are fully polarized along a direction that can be tuned by the electric and magnetic fields and by the electron energy. All the other modes are evanescent. For a wide range of parameters, this chain can serve as a spin filter.
Contact : Shingo Katsumoto (ext.63305)