Two-Copper-Atom Units Induce a Pseudo Jahn-Teller Polaron in Hole-Doped Cuprate Superconductors(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
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Multiconfiguration molecular orbital cluster calculation results combined with experimental observations suggest that the local electronic state unit for a doped hole contains at least two Cu atoms in contrast to the Zhang-Rice singlet state that includes only one Cu atom. The cluster calculation shows that a doped hole in a two copper containing cluster induces a pseudo Jahn-Teller instability with stabilization energy that agrees with a peak in the photoinduced conductivity measurement, and the Cu-O bond length fluctuations that explain the EXAFS experiment; the charge-transfer energy gap observed in the optical conductivity measurement, and an excitation energy that corresponds to a peak in the energy loss function are also obtained from the calculation including two Cu atoms.
- 社団法人日本物理学会の論文
- 2008-03-15
著者
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Makoshi Kenji
Graduate School Of Material Sicence University Of Hyogo
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Koizumi Hiroyasu
Institute Of Materials Science University Of Tsukuba
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MIYAKI Satoru
Graduate School of Material Sicence, University of Hyogo
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Miyaki Satoru
Graduate School Of Material Sicence University Of Hyogo
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Koizumi Hiroyasu
Institute of Materials Science, University of Tsukuba
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Makoshi Kenji
Graduate School of Material Science, University of Hyogo, 3-2-1 Koto, Kamigori, Hyogo 678-1297
関連論文
- Spin-Wave Excitations in Effectively Half-Filled Mott Insulators(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Two-Copper-Atom Units Induce a Pseudo Jahn-Teller Polaron in Hole-Doped Cuprate Superconductors(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Appearance of a Drude-Like Peak from Spin-Wave Excitations in the Effectively Half-Filled Mott Insulator(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Loop Current Excitations in Effectively Half-Filled Mott Insulators(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Appearance of a Drude-Like Peak from Spin-Wave Excitations in the Effectively Half-Filled Mott Insulator
- Increase in $d$-Wave Superconducting Transition Temperature near Imperfect Layer in Correlated Electron System