Spin-dependent transition rates through exchange coupled localized spin pairs during coherent spin excitation

Details Spin-dependent transition rates through exchange coupled localized spin pairs during coherent spin excitation Spin-dependent transition rates through exchange coupled localized spin pairs during coherent spin excitation

2008-01-08

arxiv.org/abs/0801.1304v2

Physics

Condensed Matter

Materials Science

Scientific paper

The effect of exchange interactions within spin pairs on spin-dependent transport and recombination rates through localized states in semiconductors during coherent electron spin resonant excitation is studied theoretically. It is shown that for identical spin systems, significant quantitative differences are to be expected between the results of pEDMR/pODMR experiments were permutation symmetry is the observable as compared to pESR experiments with polarization as the observable. It is predicted that beat oscillations of the spin nutations and not the nutations themselves dominate the transport or recombination rates when the exchange coupling strength or the field strength of the exciting radiation exceed the difference of the Zeeman energies within the spin pair. Furthermore, while the intensities of the rate oscillations decrease with increasing exchange within the spin pairs, the singlet and triplet signals retain their relative strength. This means that pEDMR and pODMR experiments could allow better experimental access to ESR forbidden singlet transitions which are hardly or not at all accessible with conventional pulsed electron spin resonance spectroscopy.

Affiliated with

Also associated with

No associations

Rating

Spin-dependent transition rates through exchange coupled localized spin pairs during coherent spin excitation 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-dependent transition rates through exchange coupled localized spin pairs during coherent spin excitation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin-dependent transition rates through exchange coupled localized spin pairs during coherent spin excitation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-421777