The nature of the emergent phase near a putative quantum critical point in the bilayer ruthenate Sr3Ru2O7 has been a recent subject of intensive research. It has been suggested that this phase may… (More)
By allowing interactions between electrons, a new Harper’s equation is derived to examine the effects of electron correlations on the Hofstadter energy spectra. It is shown that the structure of the… (More)
Considering interacting (antiferromagnetically correlated) electrons, we derive a generalized Harper’s equation for the square lattice of infinite size. We obtain an analytic expression for the… (More)
The previously studied Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state is stabilized by a magnetic field via the Zeeman coupling in spin-singlet superconductors. Here we suggest a novel route to… (More)