Driving magnetic order in a manganite by ultrafast lattice excitation

DOI: 10.1103/PhysRevB.84.241104

Authors: Michael Foerst (Max-Planck Department for Structural Dynamics, Center for Free Electron Laser Science, University of Hamburg) , Raanan Tobey (Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory) , Simon Wall (Fritz-Haber-Institute of the Max Planck Society) , Hubertus Bromberger (Max-Planck Department for Structural Dynamics, Center for Free Electron Laser Science, University of Hamburg) , Vikaran Khanna (Diamond Light Source) , A. L. Cavalieri (Max-Planck Department for Structural Dynamics, Center for Free Electron Laser Science, University of Hamburg) , Y.-d. Chuang (Advanced Light Source, Lawrence Berkeley Laboratory) , W. S. Lee (The Stanford Institute for Materials and Energy Sciences (SIMES), Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory and Stanford University) , R. Moore (The Stanford Institute for Materials and Energy Sciences (SIMES), Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory and Stanford University) , W. F. Schlotter (Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory) , J. J. Turner (Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory) , O. Krupin (European XFEL GmbH, Hamburg) , M. Trigo (PULSE Institute, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory) , H. Zheng (Materials Science Division, Argonne National Laboratory) , J. F. Mitchell (Materials Science Division, Argonne National Laboratory) , Sarnjeet Dhesi (Diamond Light Source) , J. P. Hill (Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory) , Andrea Cavalleri (University of Oxford)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 84 (24)

State: Published (Approved)
Published: December 2011

Abstract: Femtosecond midinfrared pulses are used to directly excite the lattice of the single-layer manganite La(0.5)Sr(1.5)MnO(4). 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.

Subject Areas: Physics

Facility: NSLS and LCLS

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