Physics – Condensed Matter
Scientific paper
2001-12-05
Physics
Condensed Matter
6 pages, 5 embedded eps figures
Scientific paper
10.1103/PhysRevB.65.094421
We report x-ray scattering studies of nanoscale structural correlations in Nd$_{1-x}$Sr$_x$MnO$_3$ and La$_{1-x}$(Ca,Sr)$_x$MnO$_3$, $x$=0.2--0.5. We find that the correlated regions possess a temperature-independent correlation length of 2-3 lattice constants which is the same in all samples. The period of the lattice modulation of the correlated regions is proportional to the Ca/Sr doping concentration $x$. Remarkably, the lattice modulation periods of these and several other manganites with a ferromagnetic ground state fall on the same curve when plotted as a function of $x$. Thus, the structure of the correlated regions in these materials appears to be determined by a single parameter, $x$. We argue that these observations provide important clues for understanding the Colossal Magnetoresistance phenomenon in manganites.
Borissov A.
Cheong Sang-Wook
Gibbs Doon
Hill John P.
Kim Jin Young
No associations
LandOfFree
Common features of nanoscale structural correlations in magnetoresistive manganites with ferromagnetic low-temperature state 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 Common features of nanoscale structural correlations in magnetoresistive manganites with ferromagnetic low-temperature state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Common features of nanoscale structural correlations in magnetoresistive manganites with ferromagnetic low-temperature state will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-371990