The study of the manganese oxides, widely known as manganites, that exhibit the “colossal”
magnetoresistance effect is among the main areas of research within the area of strongly …

Polarons—electronic charge carriers 'dressed'by a local polarization of the background
environment—are among the most fundamental quasiparticles in interacting many-body …

Condensed matter is one of the most active areas of research in physics. Ev ery year new
materials are discovered with properties that are as challenging as or more than those of the …

Polarized and unpolarized neutron triple-axis spectrometry was used to study the dynamical
magnetic susceptibility χ ″(q, ω) as a function of energy (ħ ω) and wave vector (q) in a wide …

Using computational techniques, it is shown that pairing is a robust property of hole-doped
antiferromagnetic insulators. In one dimension and for two-leg ladder systems, a BCS-like …

It is argued that the electron stripes as found in correlated oxides have to do with an
unrecognized form of order. The manifestation of this order is the robust property that the …

A recent vast experimental and theoretical effort in manganites has shown that the colossal
magnetoresistance effect can be understood based on the competition of charge-ordered …

Within the t− J model, the mechanism of superconductivity in doped cuprates is studied
based on the partial charge-spin separation fermion-spin theory. It is shown that dressed …

Condensation of bosons in Bose-Einstein condensates or Cooper pairs in superconductors
refers to a macroscopic occupation of a few single-or two-particle states. A condensate is …

A partial charge–spin separation fermion-spin theory is developed to study the normal-state
properties of the underdoped cuprates. In this approach, the physical electron is decoupled …