Fluctuation-Driven Quantum Phase Transitions in Clean Itinerant Ferromagnets

Details Fluctuation-Driven Quantum Phase Transitions in Clean Itinerant Ferromagnets Fluctuation-Driven Quantum Phase Transitions in Clean Itinerant Ferromagnets

2002-07-19

arxiv.org/abs/cond-mat/0207470v2

Phys. Rev. Lett. 89, 247202 (2002)

Physics

Condensed Matter

Statistical Mechanics

4 pp., REVTeX, no figs; final version as published

Scientific paper

10.1103/PhysRevLett.89.247202

The quantum phase transition in clean itinerant ferromagnets is analyzed. It is shown that soft particle-hole modes invalidate Hertz's mean-field theory for $d \leq 3$. A renormalized mean-field theory predicts a fluctuation-induced first order transition for $1 < d \leq 3$, whose stability is analyzed by renormalization group techniques. Depending on microscopic parameter values, the first order transition can be stable, or be pre-empted by a fluctuation-induced second order transition. The critical behavior at the latter is determined. The results are in agreement with recent experiments.

Affiliated with

Also associated with

No associations

Rating

Fluctuation-Driven Quantum Phase Transitions in Clean Itinerant Ferromagnets 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-Driven Quantum Phase Transitions in Clean Itinerant Ferromagnets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluctuation-Driven Quantum Phase Transitions in Clean Itinerant Ferromagnets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-397076