Physics – Condensed Matter
Scientific paper
1999-09-23
Physics
Condensed Matter
7 pages, 5 eps figures, uses elsart.cls and phbauth.cls, invited talk at the LT22, Helsinki 1999
Scientific paper
10.1016/S0921-4526(99)01720-2
Phase separation and a tendency to form inhomogeneous structures seems to be a generic property of systems with strongly correlated electrons. After shortly summarising the existing theoretical results in this direction, I concentrate on the phenomena in doped manganites. I discuss general theoretical results on the phase separation at small doping and close to the doping x=0.5. The "global" phase diagram in this region is constructed. These general results are illustrated on the example of the particular system with rich and complicated properties - (LaPr)_(1-x)Ca_xMnO_3 in which there exist a ferromagnetic metallic (FM) phase and a charge ordered (CO) insulating one. The experimental situation in this system is discussed and the interpretation is given in the framework of the model with competition of FM and CO, and the indications of phase separation and percolative nature of this system are given. Giant isotope effect observed in this situation is shortly discussed.
No associations
LandOfFree
Phase separation, percolation and giant isotope effect in manganites does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Phase separation, percolation and giant isotope effect in manganites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase separation, percolation and giant isotope effect in manganites will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-682605