Spin dynamics in electrochemically charged CdSe quantum dots

Details Spin dynamics in electrochemically charged CdSe quantum dots Spin dynamics in electrochemically charged CdSe quantum dots

2005-07-29

arxiv.org/abs/cond-mat/0507699v1

Phys. Rev. B 72, 161303(R) (2005)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.72.161303

We use time-resolved Faraday rotation to measure coherent spin dynamics in colloidal CdSe quantum dots charged in an electrochemical cell at room temperature. Filling of the 1Se electron level is demonstrated by the bleaching of the 1Se-1S3/2 absorption peak. One of the two Lande g-factors observed in uncharged quantum dots disappears upon filling of the 1Se electron state. The transverse spin coherence time, which is over 1 ns and is limited by inhomogeneous dephasing, also appears to increase with charging voltage. The amplitude of the spin precession signal peaks near the half-filling potential. Its evolution at charging potentials without any observable bleaching of the 1Se-1S3/2 transition suggests that the spin dynamics are influenced by low-energy surface states.

Affiliated with

Also associated with

No associations

Rating

Spin dynamics in electrochemically charged CdSe quantum dots does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spin dynamics in electrochemically charged CdSe quantum dots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin dynamics in electrochemically charged CdSe quantum dots will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-562254