Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2004-09-13
Phys.Rev.B70:184408,2004
Physics
Condensed Matter
Statistical Mechanics
18 pages, 6 figures, to appear in PRB
Scientific paper
10.1103/PhysRevB.70.184408
The thermal and magnetic properties of spin-1 magnetic chain compounds with large single-ion and in-plane anisotropies are investigated via the integrable su(3) model in terms of the quantum transfer matrix method and the recently developed high temperature expansion method for exactly solved models. It is shown that large single-ion anisotropy may result in a singlet gapped phase in the spin-1 chain which is significantly different from the standard Haldane phase. A large in-plane anisotropy may destroy the gapped phase. On the other hand, in the vicinity of the critical point a weak in-plane anisotropy leads to a different phase transition than the Pokrovsky-Talapov transition. The magnetic susceptibility, specific heat and magnetization evaluated from the free energy are in excellent agreement with the experimental data for the compounds NiC_2H_8N_2)_2Ni(CN)_4 and Ni(C_{10}H_8N_2)_2Ni(CN)_4.H_2O.
Batchelor Murray T.
Guan X.-W.
Oelkers Norman
No associations
LandOfFree
Thermal and magnetic properties of spin-1 magnetic chain compounds with large single-ion and in-plane anisotropies 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 Thermal and magnetic properties of spin-1 magnetic chain compounds with large single-ion and in-plane anisotropies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal and magnetic properties of spin-1 magnetic chain compounds with large single-ion and in-plane anisotropies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-530480