Colossal magnetocapacitance and colossal magnetoresistance in HgCr2S4.

Multi-scale Phase Modulations in Colossal Magnetoresistance Manganites

Extensive experimental results are presented on the multi-scale phase modulation phenomena observed in colossal magnetoresistance manganites. Two key types of phase inhomogeneities directly relevant to the colossal magnetoresistance (CMR) are discussed. The first type involves micrometer-scale coexistence of structurally and electronically different phases. We present extensive experimental dat...

Colossal Magnetoresistance

Colossal magnetoresistance (CMR) effect was discovered among the manganese oxide class of materials, i.e. La1−xCaxMnO3. It shows large magnetoresistance by orders of magnitude, however several environmental requirements limit CMR toward general applications. Recently people have been focused on understanding a fundamental physics because of complex correlations between electron-lattice and elec...

Theory of colossal magnetoresistance

The history and recent developments in studying (colossal) magnetoresistance in perovskite manganese oxides is reviewed. We emphasize the growing evidence for strongly coupled spin, charge and lattice degrees of freedom. Together with disorder, these provide the microscopic driving forces for local and inhomogeneous textures. The modeling and experimental probes for localized charge–spin–lattic...

Colossal Magnetoresistance

Magnetoimpurity theory of colossal magnetoresistance materials

Astronomy of the Russian Academy of Sciences was held on 28th January 1998 at the P L Kapitza Institute for Physical Problems, RAS. The following reports were presented at the session: (1) Nagaev E L (Institute for High-Pressure Physics of RAS) ``Magnetoimpurity theory of colossal magnetoresistance materials''; (2)Bonch-BruevichAM,VartanyanTA,Przhibel'ski|̄SG, Khromov V V (S I Vavilov State Opti...