Ultrafast structural and electronic dynamics of the metallic phase in a layered manganite

Abstract

The transition between different states in manganites can be driven by various external stimuli. Controlling these transitions with light opens the possibility to investigate the microscopic path through which they evolve. We performed femtosecond (fs) transmission electron microscopy on a bi-layered manganite to study its response to ultrafast photoexcitation. We show that a photoinduced temperature jump launches a pressure wave that provokes coherent oscillations of the lattice parameters, detected via ultrafast electron diffraction. Their impact on the electronic structure are monitored via ultrafast electron energy loss spectroscopy (EELS), revealing the dynamics of the different orbitals in response to specific structural distortions.

References in corpus (2)

• Ultrafast structural and electronic dynamics of the metallic phase in a layered manganite
• Reentrant Orbital Order and the True Ground State of LaSr2Mn2O7

Cited by in corpus (8)

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• Ultrafast structural and electronic dynamics of the metallic phase in a layered manganite
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• Using Electron Energy-Loss Spectroscopy to Measure Nanoscale Electronic and Vibrational Dynamics in a TEM
• Femtosecond Mega-electron-volt Electron Energy-Loss Spectroscopy
• Imaging Nanoscale Carrier, Thermal, and Structural Dynamics with Time-Resolved and Ultrafast Electron Energy-Loss Spectroscopy
• Photoinduced Nonequilibrium Dynamics in Charge Ordered Materials