Advances in Ultrafast Control and Probing of Correlated-Electron Materials
- Univ. of Oxford (United Kingdom). Clarendon Lab.
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Science and Technology Facilities Council (STFC), Harwell Campus, Oxford (United Kingdom). Diamond Light Source, Ltd.
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
- Univ. of Oxford (United Kingdom). Clarendon Lab.; Univ. of Hamburg (Germany). Max Planck Research Dept. for Structural Dynamics
Here in this paper, we present recent results on ultrafast control and probing of strongly correlated-electron materials. We focus on magnetoresistive manganites, applying excitation and probing wavelengths that cover the mid-IR to the soft X-rays. In analogy with near-equilibrium filling and bandwidth control of phase transitions, our approach uses both visible and mid-IR pulses to stimulate the dynamics by exciting either charges across electronic bandgaps or specific vibrational resonances. Lastly, x-rays are used to unambiguously measure the microscopic electronic, orbital, and structural dynamics. Our experiments dissect and separate the nonequilibrium physics of these compounds, revealing the complex interplay and evolution of spin, lattice, charge, and orbital degrees of freedoms in the time domain.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1134236
- Report Number(s):
- LBNL-6648E
- Journal Information:
- IEEE Journal of Selected Topics in Quantum Electronics, Vol. 18, Issue 1; ISSN 1077-260X
- Publisher:
- IEEE Lasers and Electro-optics Society
- Country of Publication:
- United States
- Language:
- English
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