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Effect of carrier doping on the formation and collapse of magnetic polarons in lightly hole-doped La_{1-x}Sr_xCoO_3
A. Podlesnyak, G. Ehlers, M. Frontzek +7
We investigate the doping dependence of the nanoscale electronic and magnetic inhomogeneities in the hole-doping range 0.002<x<0.1 of cobalt based perovskites, La{1-x}Sr_xCoO_3. Us…
Phase separation in doped systems with spin-state transitions
A. O. Sboychakov, K. I. Kugel, A. L. Rakhmanov +1
Spin-state transitions, observed in many transition metal compounds containing Co and Fe, may occur with the change of temperature, pressure, but also with doping, in…
Metal-Insulator Transition and Orbital Order in PbRuO3
S. A. J. Kimber, J. A. Rodgers, H. Wu +5
Anomalous low temperature electronic and structural behaviour has been discovered in PbRuO3. The structure (space group Pnma, a = 5.56314(1), b = 7.86468(1), c = 5.61430(1) A) and…
Enhanced dimerization of TiOCl under pressure: spin-Peierls - to - Peierls transition
S. Blanco-Canosa, F. Rivadulla, A. Pineiro +6
We report high-pressure x-ray diffraction and magnetization measurements combined with ab-initio calculations to demonstrate that the high-pressure optical and transport transition…
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…
Homopolar bond formation in ZnVO close to a metal-insulator transition
V. Pardo, S. Blanco-Canosa, F. Rivadulla +4
Electronic structure calculations for spinel vanadate ZnVO show that partial electronic delocalization in this system leads to structural instabilities. These are a consequ…