2013 Fiscal Year Final Research Report
Research on electronic states near the Mott transition
| Project/Area Number |
23540428
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
KOHNO Masanori 独立行政法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, MANA研究者 (40370308)
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| Project Period (FY) |
2011 – 2013
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| Keywords | モット転移 / 高温超伝導体 / ハバードモデル / クラスター摂動理論 / 擬ギャップ |
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| Research Abstract |
In cuprate high-temperature superconductors near the metal-insulator transition (Mott transition), various anomalous features of electronic states have been observed, which are considered to be intimately related to the mechanism of high-temperature superconductivity. In this study, by a numerical simulation for a two-dimensional system near the Mott transition, primary features of the Mott transition in a two-dimensional system were similarly explained as those of a one-dimensional system. In addition, from the viewpoint of the Mott transition, various anomalous features observed in cuprate high-temperature superconductors were successfully explained in a unified manner.
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[Journal Article] Kosterlitz-Thouless-Type Transition in a Charge Ordered State of the Layered Organic Conductor α -(BEDT-TTF) 2I32013
Author(s)
S. Uji, K. Kodama, K. Sugii, Y. Takahide, T. Terashima, N. Kurita, S. Tsuchiya, M. Kohno, M. Kimata, K. Yamamoto, and K. Yakushi
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Journal Title
Physical Review Letters
Volume: 110
Pages: 196602
DOI
Peer Reviewed
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