Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains

Details Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains

2001-11-15

arxiv.org/abs/cond-mat/0111295v2

Phys. Rev. B, Vol. 66, 060402 (2002)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 3 figures. Typos corrected

Scientific paper

10.1103/PhysRevB.66.060402

Random spin-3/2 antiferromagnetic Heisenberg chains are investigated using an asymptotically exact renormalization group. Randomness is found to induce a quantum phase transition between two random-singlet phases. In the strong randomness phase the effective spins at low energies are S_eff=3/2, while in the weak randomness phase the effective spins are S_eff=1/2. Separating them is a quantum critical point near which there is a non-trivial mixture of S=1/2, S=1, and S=3/2 effective spins at low temperatures.

Affiliated with

Also associated with

No associations

Rating

Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains 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 Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin Reduction Transition in Spin-3/2 Random Heisenberg Chains will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-195061