Proposed low energy model Hamiltonian for spin-gapped system CuTe2O5

Details Proposed low energy model Hamiltonian for spin-gapped system CuTe2O5 Proposed low energy model Hamiltonian for spin-gapped system CuTe2O5

2007-03-26

arxiv.org/abs/cond-mat/0703675v3

Physics

Condensed Matter

Materials Science

8 pages, 15 figures

Scientific paper

10.1103/PhysRevB.77.224437

Using first-principles electronic structure calculations based on the Nth order muffin tin orbital (NMTO)-downfolding technique, we derived the low-energy spin model for CuTe2O5. Our study reveals that this compound is a 2D coupled spin-dimer system with the strongest Cu-Cu interaction mediated by two O-Te-O bridges. We checked the goodness of our model by computing the magnetic susceptibility with the Quantum Monte Carlo technique and by comparing it with available experimental data. We also present magnetization and specific heat results which may be compared with future experimental investigations. Our derived model is in disagreement with a recently proposed model for this compound [J. Deisenhofer et al, Phys. Rev. B,74 (2006) 174421]. The situation needs to be settled in terms of further experimental investigations.

Affiliated with

Also associated with

No associations

Rating

Proposed low energy model Hamiltonian for spin-gapped system CuTe2O5 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 Proposed low energy model Hamiltonian for spin-gapped system CuTe2O5, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proposed low energy model Hamiltonian for spin-gapped system CuTe2O5 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-68397