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Driving magnetic order in a manganite by ultrafast lattice excitation.
- Source :
-
Physical Review B: Condensed Matter & Materials Physics . Dec2011, Vol. 84 Issue 24, p241104-1-241104-5. 5p. - Publication Year :
- 2011
-
Abstract
- Femtosecond midinfrared pulses are used to directly excite the lattice of the single-layer manganite La0.5Sr1.5MnO4. Magnetic and orbital orders, as measured by femtosecond resonant soft x-ray diffraction with an x-ray free-electron laser, are reduced within a few picoseconds. This effect is interpreted as a displacive exchange quench, a prompt shift in the equilibrium value of the magnetic- and orbital-order parameters after the lattice has been distorted. Control of magnetism through ultrafast lattice excitation may be of use for high-speed optomagnetism. [ABSTRACT FROM AUTHOR]
- Subjects :
- *X-ray diffraction
*SPIN excitations
*MAGNETISM
*LASERS
*MANGANITE
Subjects
Details
- Language :
- English
- ISSN :
- 10980121
- Volume :
- 84
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Physical Review B: Condensed Matter & Materials Physics
- Publication Type :
- Academic Journal
- Accession number :
- 72070547
- Full Text :
- https://doi.org/10.1103/PhysRevB.84.241104