Photoinduced Charge and Spin Dynamics in Strongly Correlated Electron Systems(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
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Motivated by the photoinduced phase transition in perovskite manganites, we examine charge and spin dynamics induced by photoirradiation. We calculate the transient optical absorption spectra of the extended double-exchange model by the density matrix renormalization group method. A charge-ordered insulator (COI) becomes metallic just after photoirradiation, and the metallic state tends to recover the initial COI. This recovery is accompanied by the suppression of an antiferromagnetic correlation in the COI and is remarkable near a phase boundary in the ground state. We discuss the implications of the recent pump-probe reflection and magneto-optical Kerr spectroscopy data.
- 社団法人日本物理学会の論文
- 2007-08-15
著者
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ISHIHARA Sumio
Department of Applied Physics,University of Tokyo
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Matsueda Hiroaki
Department Of Physics Tohoku University:(present Office)sendai National College Of Technology
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Ishihara Sumio
Tohoku Univ. Sendai Jpn
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Ishihara Sumio
Department Of Applied Physics University Of Tokyo
関連論文
- Interplay of Spin and Orbital Orderings in Perovskite Manganites
- Optical Spectra in the Ferromagnetic States near the Charge Ordering
- Electronic Ferroelectricity and Frustration
- Photoinduced Charge and Spin Dynamics in Strongly Correlated Electron Systems(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Orbital Ordering and Excitation in Correlated Electron Systems(New Developments in Strongly Correlated Electron Systems)
- Dielectric properties in transition metal oxides(Abstracts of Doctoral Dissertations,Annual Report (from April 1994 to March 1995))
- Ring-Exchange Interaction in Doubly Degenerate Orbital System
- Band and Mott Insulators and Superconductivity in Honeycomb-Lattice Ionic-Hubbard Model
- Quantum Fluctuation and Geometrical Frustration Effects on Electric Polarization
- Electronic Ferroelectricity in a Dimer Mott Insulator
- Quantum Dielectric Fluctuation in Electronic Ferroelectricity Studied by Variational Monte-Carlo Method
- Band and Mott Insulators and Superconductivity in Honeycomb-Lattice Ionic-Hubbard Model