Magnetic quantum tunnelling in Fe8 with excited nuclei

Details Magnetic quantum tunnelling in Fe8 with excited nuclei Magnetic quantum tunnelling in Fe8 with excited nuclei

2009-07-05

arxiv.org/abs/0907.0844v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

We investigate the effect of dynamic nuclear spin fluctuation on quantum tunneling of the magnetization (QTM) in the molecular magnet Fe8 by increasing the nuclei temperature using radio frequency (RF) pulses before the hysteresis loop measurements. The RF pulses do not change the electrons spin temperature. Independently we show that the nuclear spin-spin relaxation time T2 has strong temperature dependence. Nevertheless, we found no effect of the nuclear spin temperature on the tunneling probability. This suggests that in our experimental conditions only the hyperfine field strength is relevant for QTM. We demonstrate theoretically how this can occur.

Affiliated with

Also associated with

No associations

Rating

Magnetic quantum tunnelling in Fe8 with excited nuclei 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 Magnetic quantum tunnelling in Fe8 with excited nuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic quantum tunnelling in Fe8 with excited nuclei will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-187420