6 papers
Symmetry Considerations for the Detection of Second-Harmonic Generation in Cuprates in the Pseudogap phase
M. E. Simon, C. M. Varma
A proposal to test the proposed time-reversal and inversion breaking phase in the Pseudogap region of the Cuprate compounds through the variation of Second-harmonic generation inte…
Detection and Implications of a Time-reversal breaking state in underdoped Cuprates
M. E. Simon, C. M. Varma
We present general symmetry considerations on how a Time-reversal breaking state may be detected by angle-resolved photoemission using circularly polarized photons as has been prop…
Dynamics of some constrained lattices
M. E. Simon, C. M. Varma
We consider the dynamics of lattices which have constrained constitutive units flexible in only their mutual orientations. A continuum description is derived through which it is sh…
Optical properties of an effective one-band Hubbard model for the cuprates
M. E. Simon, A. A. Aligia, E. R. Gagliano
We study the Cu and O spectral density of states and the optical conductivity of CuO_2 planes using an effective generalized one-band Hubbard model derived from the extended three-…
Phase separation and valence instabilities in cuprate superconductors. Effective one-band model approach
M. E. Simón, A. A. Aligia
We study the Cu-O valence instability (VI) and the related phase separation (PS) driven by Cu-O nearest-neighbor repulsion , using an effective extended one-band Hubbard mo…
Excitons in insulating cuprates
M. E. Simón, A. A. Aligia, C. D. Batista +2
We study the electronic excitations near the charge-transfer gap in insulating CuO planes, starting from a six-band model which includes and orbitals and Cu-O…