Landau theory of compressible magnets near a quantum critical point

Details Landau theory of compressible magnets near a quantum critical point Landau theory of compressible magnets near a quantum critical point

2009-12-15

arxiv.org/abs/0912.2840v1

Physics

Condensed Matter

Statistical Mechanics

12 pages including 5 figures, to be presented at MMM-Intermag conference and accepted for publication in Journal of Applied Ph

Scientific paper

Landau theory is used to investigate the behaviour of a metallic magnet driven towards a quantum critical point by the application of pressure. The observed dependence of the transition temperature with pressure is used to show that the coupling of the magnetic order to the lattice diverges as the quantum critical point is approached. This means that a first order transition will occur in magnets (both ferromagnets and antiferromagnets) because of the coupling to the lattice. The Landau equations are solved numerically without further approximations. There are other mechanisms that can cause a first order transition so the significance of this work is that it will enable us to determine the extent to which any particular first order transition is driven by coupling to the lattice or if other causes are responsible.

Affiliated with

Also associated with

No associations

Rating

Landau theory of compressible magnets near a quantum critical point 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 Landau theory of compressible magnets near a quantum critical point, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Landau theory of compressible magnets near a quantum critical point will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-305363