Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2010-07-20
Phys. Rev. B 82, 172408 (2010)
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 5 figures
Scientific paper
10.1103/PhysRevB.82.172408
We study quantum phase transitions induced by the on-site spin-orbit interaction lambda(L.S) in a toy model of vanadium chains. In the lambda->0 limit, the decoupled spin and orbital sectors are described by a Haldane and an Ising chain, respectively. The gapped ground state is composed of a ferro-orbital order and a spin liquid with finite correlation lengths. In the opposite limit, strong spin-orbital entanglement results in a simultaneous spin and orbital-moment ordering, which can be viewed as an orbital liquid. Using a combination of analytical arguments and density-matrix renormalization group calculation, we show that an intermediate phase, where the ferro-orbital state is accompanied by a spin Neel order, is bounded on both sides by Ising transition lines. Implications for vanadium compounds CaV2O4 and ZnV2O4 are also discussed.
Chern Gia-Wei
Japaridze George I.
Perkins Natalia B.
No associations
LandOfFree
Quantum criticality of vanadium chains with strong relativistic spin-orbit interaction 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 Quantum criticality of vanadium chains with strong relativistic spin-orbit interaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum criticality of vanadium chains with strong relativistic spin-orbit interaction will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-126260