207 citations · 2.5k across the 69 of their papers we have counts for
69 papers
High-temperature magnetization and entropy of the triangular lattice Hubbard model in a Zeeman field
Owen Bradley, Yutan Zhang, Jaan Oitmaa +1
We use strong coupling expansions to calculate the entropy function , the magnetization , and the double occupancy factor for the half-filled triangular la…
Classical and quantum phases of the pyrochlore magnet with Heisenberg and Dzyaloshinskii-Moriya interactions
Vincent Noculak, Daniel Lozano-Gómez, Jaan Oitmaa +4
We investigate the ground state and critical temperature phase diagrams of the classical and quantum pyrochlore lattice with nearest-neighbor Heisenberg and Dzyaloshinskii-…
Onset of charge incompressibility and Mott gaps in the Honeycomb-Lattice SU(4) Hubbard Model: Lessons for Twisted Bilayer Graphene systems
Rahul Hingorani, Jaan Oitmaa, Rajiv R. P. Singh
We use finite temperature strong coupling expansions to calculate thermodynamic properties of the Honeycomb-lattice SU(4) Hubbard model. We present numerical results for various pr…
On the Divergence of the Ferromagnetic Susceptibility in the SU(N) Nagaoka-Thouless Ferromagnet
Rajiv R. P. Singh, Jaan Oitmaa
Using finite temperature strong coupling expansions for the SU(N) Hubbard Model, we calculate the thermodynamic properties of the model in the infinite- limit for arbitrary dens…
Finite Temperature Strong Coupling Expansions for the SU(N) Hubbard Model
Rajiv R. P. Singh, Jaan Oitmaa
We develop finite temperature strong coupling expansions for the SU(N) Hubbard Model in powers of , and for arbitrary filling. The expansions are…
Thermodynamic behavior of modified integer-spin Kitaev models on the honeycomb lattice
Owen Bradley, Jaan Oitmaa, Diptiman Sen +1
We study the thermodynamic properties of modified spin- Kitaev models introduced by Baskaran, Sen and Shankar (Phys. Rev. B 78, 115116 (2008)). These models have the property th…