Unusual Layer-Dependent Charge Distribution, Collective Mode Coupling, and Superconductivity in Multilayer Cuprate Ba2Ca3Cu4O8F2
スポンサーリンク
概要
- 論文の詳細を見る
Low energy ultrahigh momentum resolution angle resolved photoemission spectroscopy study on four-layer self-doped high T-c superconductor Ba2Ca3Cu4O8F2 (F0234) revealed fine structure in the band dispersion, identifying the unconventional association of hole and electron doping with the inner and outer CuO2 layers, respectively. For the states originating from two inequivalent CuO2 layers, different energy scales are observed in dispersion kinks associated with the collective mode coupling, with the larger energy scale found in the electron (n-) doped state which also has stronger coupling strength. Given the earlier finding that the superconducting gap is substantially larger along the n-type Fermi surface, our observations connect the mode coupling energy and strength with magnitude of the pairing gap.
- 2009-07-17
論文 | ランダム
- 738 見かけの「正答」について(1) : 学力調査の問題別正答率解釈上の一技法(測定・評価6,測定・評価)
- わかる学習をめざす評価の工夫 (わかる学習)
- B-2 正負の数2項演算の目標到達の作成とその解析 (2)
- A-5 正負の数2項演算の目標達成度地図の作成とその解析
- 8-1 正負の数・二項演算の目標到達度地図作成と分析