126 citations · 1k across the 41 of their papers we have counts for
41 papers
Superconductivity of strongly correlated electrons on the honeycomb lattice
A. A. Vladimirov, D. Ihle, N. M. Plakida
A microscopic theory of the electronic spectrum and of superconductivity within the t-J model on the honeycomb lattice is developed. We derive the equations for the normal and anom…
Spin excitations and thermodynamics of the t-J model on the honeycomb lattice
A. A. Vladimirov, D. Ihle, N. M. Plakida
We present a spin-rotation-invariant Green-function theory for the dynamic spin susceptibility in the spin-1/2 antiferromagnetic t-J Heisenberg model on the honeycomb lattice. Empl…
Spin excitations and thermodynamics of the antiferromagnetic Heisenberg model on the layered honeycomb lattice
A. A. Vladimirov, D. Ihle, N. M. Plakida
We present a spin-rotation-invariant Green-function theory for the dynamic spin susceptibility in the spin-1/2 antiferromagnetic Heisenberg model on a stacked honeycomb lattice. Em…
Thermodynamics of frustrated ferromagnetic spin- Heisenberg chains: The role of inter-chain coupling
P. Müller, J. Richter, D. Ihle
The thermodynamics of coupled frustrated ferromagnetic chains is studied within a spin-rotation-invariant Green's function approach. We consider an isotropic Heisenberg spin-half s…
Magnetic order and spin excitations in the Kitaev--Heisenberg model on the honeycomb lattice
A. A. Vladimirov, D. Ihle, N. M. Plakida
We consider the quasi-two-dimensional pseudo-spin-1/2 Kitaev - Heisenberg model proposed for A2IrO3 (A=Li, Na) compounds. The spin-wave excitation spectrum, the sublattice magnetiz…
Magnetic order in the two-dimensional compass-Heisenberg model
A. A. Vladimirov, D. Ihle, N. M. Plakida
A Green-function theory for the dynamic spin susceptibility in the square-lattice spin-1/2 antiferromagnetic compass-Heisenberg model employing a generalized mean-field approximati…