Photoinduced Phase Transitions in Strongly Correlated Electron Systems
説明
The search for materials that show a phase transition triggered by weak external stimulation of light is an important and attractive target for photonic and materials science today. My talk reviews experimental evidence indicating that photo-injected local excitation can really trigger an electron-lattice coupled cooperative phenomenon named as photo-induced phase transition (PIPT: Photo-domino effect) in wide class of materials based on the dynamical x-ray technique combined with the ultrafast spectroscopy. Obtained results also demonstrate that ‘hidden phase’ in strongly correlated systems which never appears in the phase diagram under thermo-equilibrium condition plays an essential role for the gigantic photo-response of the strongly correlated electron systems.
収録刊行物
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- Conference on Lasers and Electro-Optics 2012
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Conference on Lasers and Electro-Optics 2012 QM4G.7-, 2012-01-01
OSA