Abstract
We discuss recent soft x-ray resonant diffraction studies of magnetic and structural correlations in manganites and cobaltates. In half-doped manganites, the resonant enhancement of super-lattice diffraction peaks resulting from orbital and magnetic order is utilized to make a direct comparison of orbital and spin correlations. The main finding is that the correlation length associated with magnetic order exceeds that of the orbital order by of order a factor of two - a result which appears at odds with orbitally driven magnetic exchange pathways. Similar resonant diffraction measurements at the Co L-edge were performed to study the oxygen-doped cobaltate Bi2Sr 2CoO6+δ, in which we find a surprising incommensurate antiferromagnetic order.
Original language | English (US) |
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Article number | 59322A |
Pages (from-to) | 1-9 |
Number of pages | 9 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 5932 |
DOIs | |
State | Published - 2005 |
Externally published | Yes |
Event | Strongly Correlated Electron Materials: Physics and Nanoengineering - San Diego, CA, United States Duration: Jul 31 2005 → Aug 4 2005 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering