Metal-insulator transitions are accompanied by huge resistivity changes, even over tens of
orders of magnitude, and are widely observed in condensed-matter systems. This article …

We review the dynamical mean-field theory of strongly correlated electron systems which is
based on a map** of lattice models onto quantum impurity models subject to a self …

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 …

Mixed-valence manganese oxides (R1-χAχ) MnO3 (R= rare-earth cation, A= alkali or
alkaline earth cation), with a structure similar to that of perovskite CaTiO3, exhibit a rich …

The manganese oxides of general formula RE 1− x M x MnO 3 (RE= rare earth, M= Ca, Sr,
Ba, Pb) have remarkable interrelated structural, magnetic and transport properties induced …

Oxides have become a key ingredient for new concepts of electronic devices. To a large
extent, this is due to the profusion of new physics and novel functionalities arising from …

The evolution of the structural properties of A 1− x A x′ MnO 3 was determined as a
function of temperature, average A-site radius< r A>, and applied pressure for the “optimal” …

Magnetic oxides show a variety of extrinsic magnetotransport phenomena: grain-boundary,
tunnelling and domain-wall magnetoresistance. In view of these phenomena the role of …

The perovskite manganites with generic formula RE 1− x AE x MnO 3 (RE= rare earth, AE=
Ca, Sr, Ba and Pb) have drawn considerable attention, especially following the discovery of …

Optical conductivity spectra and their variation with temperature and do** level x have
been investigated for single crystals of La 1− x Sr x MnO 3 n (0⩽ x⩽ 0.3). For the low-doped …