66 citations · 190 across the 7 of their papers we have counts for
7 papers
Spin liquid phase in the semiclassical theory of the Heisenberg model on an anisotropic triangular lattice with ring exchange
Michael Holt, Ben J. Powell, Jaime Merino
We investigate the effect of ring-exchange on the ground-state properties and magnetic excitations of the Heisenberg model on the anisotropic triangular lattice with ring…
Spin liquid phase in a spatially anisotropic frustrated antiferromagnet
Jaime Merino, Michael Holt, Ben J. Powell
We explore the effect of the third nearest-neighbors on the magnetic properties of the Heisenberg model on an anisotropic triangular lattice. We obtain the phase diagram of the mod…
Spin liquid phase due to competing classical orders in the semiclassical theory of the Heisenberg model with ring exchange on an anisotropic triangular lattice
Michael Holt, Ben J. Powell, Jaime Merino
Linear spin wave theory shows that ring exchange induces a quantum disordered region in the phase diagram of the title model. Spin wave spectra show that this is a direct manifesta…
Fermi Surface Reconstruction by Dynamic Magnetic Fluctuations and Spin-Charge Separation Near an O(3) Quantum Critical Point
Michael Holt, Jaan Oitmaa, Wei Chen +1
Stimulated by the small/large Fermi surface controversy in the cuprates we consider a small number of holes injected into the bilayer antiferromagnet. The system has an O(3) quantu…
Fermi Surface Reconstruction by Dynamic Magnetic Fluctuations
Michael Holt, Jaan Oitmaa, Wei Chen +1
We demonstrate that nearly critical quantum magnetic fluctuations in strongly correlated electron systems can change the Fermi surface topology and also lead to spin charge separat…
Three dimensional generalization of the - Heisenberg model on a square lattice and role of the interlayer coupling
Michael Holt, Oleg P. Sushkov, Daniel Stanek +1
A possibility to describe magnetism in the iron pnictide parent compounds in terms of the two-dimensional frustrated Heisenberg - model has been actively discussed recent…