Results 171 to 180 of about 15,486 (198)
Some of the next articles are maybe not open access.
Annual Review of Materials Science, 2000
▪ Abstract We review the recent progress in the study of layered magnetic manganites La2−2xSr1+2xMn2O7, which have many unique features of charge transport and magnetism inherent to the quasi-two-dimensional electronic structure. The system shows a wide variety of magnetic-field-induced phenomena due to the layered crystal and magnetic structure ...
T. Kimura, Y. Tokura
openaire +1 more source
▪ Abstract We review the recent progress in the study of layered magnetic manganites La2−2xSr1+2xMn2O7, which have many unique features of charge transport and magnetism inherent to the quasi-two-dimensional electronic structure. The system shows a wide variety of magnetic-field-induced phenomena due to the layered crystal and magnetic structure ...
T. Kimura, Y. Tokura
openaire +1 more source
Cuprate/manganite heterostructures
Journal of Magnetism and Magnetic Materials, 1999Advances in thin film deposition techniques have made it possible to produce heterostructures of high-temperature superconducting compounds and manganite perovskites. The latter exhibit the phenomenon of colossal magnetoresistance (CMR). The half-metallic character of the CMR compounds results in their carriers being spin polarized.
A.M Goldman +4 more
openaire +1 more source
Colossal magnetoresistive manganites
Journal of Magnetism and Magnetic Materials, 1999Abstract Magnetoelectronic features of the perovskite-type manganites are overviewed in the light of the mechanism of the colossal magnetoresistance (CMR). The essential ingredient of the CMR physics is not only the double-exchange interaction but also other competing interactions, such as ferromagnetic/antiferromagnetic superexchange interactions ...
Y Tokura, Y Tomioka
openaire +1 more source
Photoconductivity in Manganites
Journal of Superconductivity, 2000We report two types of photoconductivity effects observed by illumination of oxygen deficient manganites thin films with UV or visible light. One is the persistent photoconductivity effect observed at low temperature (T < 30 K) when the thin film is in the metallic state.
A. Gilabert +6 more
openaire +1 more source
Advances in Physics, 1999
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 variety of crystallographic, electronic and magnetic phases. Historically they led to the formulation of new physical concepts such as double exchange and the Jahn-Teller polaron ...
J. M. D. Coey, M. Viret, S. von Molnár
openaire +1 more source
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 variety of crystallographic, electronic and magnetic phases. Historically they led to the formulation of new physical concepts such as double exchange and the Jahn-Teller polaron ...
J. M. D. Coey, M. Viret, S. von Molnár
openaire +1 more source
Magnetic Filaments in Resistive Manganites
Physical Review Letters, 2004The magnetic phase separation in single crystals of the Pr0.67Ca0.33MnO3 manganites is studied using polarized small angle neutron scattering. The measured spectra give a fractal dimension consistent with a configuration in ferromagnetic filaments of nanometric diameter.
M, Viret +5 more
openaire +2 more sources
Science, 2003
APPLIED PHYSICS Magnetic tunnel junctions control current based on spin rather than electric field. They consist of two ferromagnetic electrodes separated by a thin oxide layer. The amount of current transported across the junction depends only on the relative spin polarization of the two ...
openaire +1 more source
APPLIED PHYSICS Magnetic tunnel junctions control current based on spin rather than electric field. They consist of two ferromagnetic electrodes separated by a thin oxide layer. The amount of current transported across the junction depends only on the relative spin polarization of the two ...
openaire +1 more source
Colossal Magnetoresistive Manganites
2004This book is a comprehensive account of the present understanding of an important class of perovskite oxide materials with potential industrial applications. The chapters are written by well-known scientists who are on the forefront of the field and have directly contributed to its recent progress.
openaire +1 more source
Ferromagnetic lanthanum manganites
Journal of Magnetism and Magnetic Materials, 2012Abstract The short overview of the physical properties of the ferromagnetic manganites exhibiting colossal magnetoresistance is given.
openaire +1 more source
2002
Series Preface. Preface. Thermodynamics of the Double Exchange System N. Furukawa. Phase Separation in Models for Manganites: Theoretical Aspects and Comparison with Experiments E. Dagotto et al. Two Ferromagnetic States in Magnetoresistive Manganites: First Order Transition Driven by Orbitals S. Maekawa et al.
openaire +1 more source
Series Preface. Preface. Thermodynamics of the Double Exchange System N. Furukawa. Phase Separation in Models for Manganites: Theoretical Aspects and Comparison with Experiments E. Dagotto et al. Two Ferromagnetic States in Magnetoresistive Manganites: First Order Transition Driven by Orbitals S. Maekawa et al.
openaire +1 more source