Driving magnetic order in a manganite by ultrafast lattice excitation

DOI: 10.1103/PhysRevB.84.241104

Authors: M. Foerst (University of Hamburg) , R. I. Tobey (Brookhaven National Laboratory) , S. Wall (Fritz-Haber-Institute of the Max Planck Society) , H. Bromberger (University of Hamburg) , V. Khanna (University of Hamburg; University of Oxford; Diamond Light Source) , A. L. Cavalieri (University of Hamburg) , Y.-D. Chuang (Advanced Light Source, Lawrence Berkeley Laboratory) , W. S. Lee (Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory and Stanford University) , R. Moore (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) , M. Trigo (Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory) , H. Zheng (Argonne National Laboratory) , J. F. Mitchell (Argonne National Laboratory) , S. S. Dhesi (Diamond Light Source) , J. P. Hill (Brookhaven National Laboratory) , A. Cavalleri (University of Hamburg; 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.

Diamond Keywords: Data Storage

Subject Areas: Physics, Materials

Facility: X1A2 at NSLS; SXR at LCLS

Added On: 03/01/2012 10:22

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Physics Components & Micro-systems Information & Communication Technologies Magnetism Materials Science

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