242 citations · 586 across the 25 of their papers we have counts for
25 papers
Incomplete Protection of the Surface Weyl Cones of the Kondo Insulator SmB: Spin Exciton Scattering
G. A. Kapilevich, P. S. Riseborough, A. X. Gray +3
The compound SmB is a Kondo Insulator, where the lowest-energy bulk electronic excitations are spin excitons. It also has surface states that are subjected to strong spin-orbit…
Flat band ferromagnetism without connectivity conditions in the flat band
Miklos Gulacsi, Gyorgy Kovacs, Zsolt Gulacsi
It is known that a system which exhibits a half filled lowest flat band and the localized one-particle Wannier states on the flat band satisfy the connectivity conditions, is alway…
Exact ferromagnetic ground state of pentagon chains
Miklos Gulacsi, Gyorgy Kovacs, Zsolt Gulacsi
We model conducting pentagon chains with a multi orbital Hubbard model and prove that well below half filling exact ferromagnetic ground states appear. The rigorous method we use i…
Pairing mechanism in Fe pnictide superconductors
R. Chan, M. Gulacsi, A. Ormeci +1
By applying an exact unitary transformation to a two-band hamiltonian which also includes the effects due to large pnictogen polarizabilities, we show that an attractive spin-media…
Finite Temperature Properties of a Supersolid: a RPA Approach
A. J. Stoffel, M. Gulacsi
We study in random-phase approximation the newly discovered supersolid phase of He and present in detail its finite temperature properties. He is described within a har…
RPA Green's Functions of the Anisotropic Heisenberg Model
Andre Johannes Stoffel, Miklos Gulacsi
We solve in random-phase approximation the anisotropic Heisenberg model, including nearest and next-nearest neighbour interactions by calculating all Green's functions and pair cor…