Magnetism and the Weiss Exchange Field - A Theoretical Analysis Inspired by Recent Experiments

Details Magnetism and the Weiss Exchange Field - A Theoretical Analysis Inspired by Recent Experiments Magnetism and the Weiss Exchange Field - A Theoretical Analysis Inspired by Recent Experiments

2005-04-26

arxiv.org/abs/cond-mat/0504674v1

Physics

Condensed Matter

Strongly Correlated Electrons

36 pages, 3 figures

Scientific paper

10.1007/s10955-006-9120-0

The huge spin precession frequency observed in recent experiments with spin-polarized beams of hot electrons shot through magnetized films is interpreted as being caused by Zeeman coupling of the electron spins to the so-called Weiss exchange field in the film. A "Stern-Gerlach experiment" for electrons moving through an inhomogeneous exchange field is proposed. The microscopic origin of exchange interactions and of large mean exchange fields, leading to different types of magnetic order, is elucidated. A microscopic derivation of the equations of motion of the Weiss exchange field is presented. Novel proofs of the existence of phase transitions in quantum XY-models and antiferromagnets, based on an analysis of the statistical distribution of the exchange field, are outlined.

Affiliated with

Also associated with

No associations

Rating

Magnetism and the Weiss Exchange Field - A Theoretical Analysis Inspired by Recent Experiments 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 Magnetism and the Weiss Exchange Field - A Theoretical Analysis Inspired by Recent Experiments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetism and the Weiss Exchange Field - A Theoretical Analysis Inspired by Recent Experiments will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-199181