96 citations · 146 across the 5 of their papers we have counts for
5 papers · 1 filter
A model for the phase separation controlled by doping and the internal chemical pressure in different cuprate superconductors
K. I. Kugel, A. L. Rakhmanov, A. O. Sboychakov +2
In the framework of a two-band model, we study the phase separation regime of different kinds of strongly correlated charge carriers as a function of the energy splitting between t…
Doped orbitally-ordered systems: another case of phase separation
K. I. Kugel, A. L. Rakhmanov, A. O. Sboychakov +1
A possible mechanism of electronic phase separation in the systems with orbital ordering is analyzed. We suggest a simple model taking into account an interplay between the delocal…
A mechanism for phase separation in copper oxide superconductors
A. O. Sboychakov, Sergey Savel'ev, A. L. Rakhmanov +2
A two-band Hubbard model is used to describe the band structure and phase separation (PS) in multiband superconductors, especially in cuprates. We predict a large peak in the densi…
Spin-dependent transport in phase-separated manganites
K. I. Kugel, A. L. Rakhmanov, A. O. Sboychakov +3
Starting from the assumption that ferromagnetically correlated regions exist in manganites even in the absence of long-range magnetic order, we construct a model of charge transfer…
Magnetic polarons in doped 1D antiferromagnetic chain
I. González, J. Castro, D. Baldomir +3
The structure of magnetic polarons (ferrons) is studied for an 1D antiferromagnetic chain doped by non-magnetic donor impurities. The conduction electrons are assumed to be bound b…