Theory of the field-induced BEC in the frustrated spin-1/2 dimer compound BaCuSi2O6

Details Theory of the field-induced BEC in the frustrated spin-1/2 dimer compound BaCuSi2O6 Theory of the field-induced BEC in the frustrated spin-1/2 dimer compound BaCuSi2O6

2008-11-28

arxiv.org/abs/0811.4745v4

Phys. Rev. Lett. 102, 060602 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevLett.102.060602

Building on recent neutron and NMR experiments, we investigate the field-induced exotic criticality observed in the frustrated spin-1/2 dimer compound BaCuSi2O6 using a frustrated model with two types of bilayers. A semiclassical treatment of the effective hard-core boson model shows that perfect inter-layer frustration leads to a 2D-like critical exponent phi=1 without logarithmic corrections and to a 3D low temperature phase with different but non vanishing triplet populations in both types of bilayers. These results further suggest a simple phenomenology in terms of a field-dependent transverse coupling in the context of which we reproduce the entire field-temperature phase diagram with Quantum Monte Carlo simulations.

Affiliated with

Also associated with

No associations

Rating

Theory of the field-induced BEC in the frustrated spin-1/2 dimer compound BaCuSi2O6 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 Theory of the field-induced BEC in the frustrated spin-1/2 dimer compound BaCuSi2O6, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of the field-induced BEC in the frustrated spin-1/2 dimer compound BaCuSi2O6 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-710417