Long-range order versus random-singlet phases in quantum antiferromagnetic systems with quenched disorder

Details Long-range order versus random-singlet phases in quantum antiferromagnetic systems with quenched disorder Long-range order versus random-singlet phases in quantum antiferromagnetic systems with quenched disorder

1995-09-12

arxiv.org/abs/cond-mat/9509069v2

Phys. Rev. Lett. vol 76, pp. 2571-2574 (1996), and vol. 78, p. 1197 (1997)

Physics

Condensed Matter

Statistical Mechanics

5 pp., REVTeX, epsf, 3 eps figs, final version as published, including erratum

Scientific paper

10.1103/PhysRevLett.76.2571

The stability of antiferromagnetic long-range order against quenched disorder is considered. A simple model of an antiferromagnet with a spatially varying Neel temperature is shown to possess a nontrivial fixed point corresponding to long-range order that is stable unless either the order parameter or the spatial dimensionality exceeds a critical value. The instability of this fixed point corresponds to the system entering a random-singlet phase. The stabilization of long-range order is due to quantum fluctuations, whose role in determining the phase diagram is discussed.

Affiliated with

Also associated with

No associations

Rating

Long-range order versus random-singlet phases in quantum antiferromagnetic systems with quenched disorder 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 Long-range order versus random-singlet phases in quantum antiferromagnetic systems with quenched disorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Long-range order versus random-singlet phases in quantum antiferromagnetic systems with quenched disorder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-519856