Fluctuation induced hopping and spin polaron transport

Details Fluctuation induced hopping and spin polaron transport Fluctuation induced hopping and spin polaron transport

2001-12-20

arxiv.org/abs/cond-mat/0112385v1

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 3 figures

Scientific paper

10.1103/PhysRevB.66.224402

We study the motion of free magnetic polarons in a paramagnetic background of fluctuating local moments. The polaron can tunnel only to nearby regions of local moments when these fluctuate into alignment. We propose this fluctuation induced hopping as a new transport mechanism for the spin polaron. We calculate the diffusion constant for fluctuation induced hopping from the rate at which local moments fluctuate into alignment. The electrical resistivity is then obtained via the Einstein relation. We suggest that the proposed transport mechanism is relevant in the high temperature phase of the Mn pyrochlore colossal magneto resistance compounds and Europium hexaboride.

Affiliated with

Also associated with

No associations

Rating

Fluctuation induced hopping and spin polaron transport 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 Fluctuation induced hopping and spin polaron transport, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluctuation induced hopping and spin polaron transport will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-314268