Theoretical study on exotic quantum transport properties induced by Cooperation between peculiar band structures and electron correlation effects

奇特能带结构与电子相关效应协同引起的奇异量子输运特性的理论研究

• 批准号: 20540350
• 负责人: KUROKI Kazuhiko
• 金额: $ 2.25万
• 依托单位: The University of Electro-Communications
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20540350/
• 关键词: 超伝導; 熱電効果; バンド構造; 電子相関; 鉄ニクタイド; 銅酸化物; 層状窒化物; 酸化物; 有機導体

Electrons are particles governed by quantum mechanics, and therefore behave as waves. The frequency and the wavelength (or the wave number) of this wave are related by the dispersion relation, which is expressed in terms of the band structure in condensed matter. On the other hand, there are many electrons in condensed matter, and they repulsively interact with each other. In the present project, we have theoretically studied the origin of exotic electronic transport properties which are induced by cooperation of peculiar band structures and electron-electron interaction effects.

电子是由量子力学控制的颗粒，因此以波浪形式行为。该波的频率和波长（或波数）与分散关系有关，分散关系以缩合物中的带状结构表示。另一方面，凝结物质中有许多电子，它们相互排斥。在本项目中，我们从理论上研究了外来电子传输特性的起源，这些特性是由特殊带结构和电子电子相互作用效应的合作引起的。

项目成果

Effective five band analysis on the pressure effect of FeSe

FeSe压力效应的有效五波段分析

• 发表时间: 2010
• 期刊: Physica C, in Proc.The 9th International Conferenceon Materials and Mechanisms of Superconductivity
• 作者: H.Usui;K.Kuroki
• 通讯作者: K.Kuroki

Unconventional Pairing in Doped Band Insulators on a Honeycomb Lattice : Application to Superconducting β-MNC1 (M=Hf, Zr)

蜂窝晶格上掺杂带绝缘体的非常规配对：在超导 β-MNC1 (M=Hf, Zr) 中的应用

• 发表时间: 2008
• 作者: H.Usui;R.Arita;K.Kuroki;K. Kuroki
• 通讯作者: K. Kuroki

Maximizing the Fermi surface multiplicity optimizes superconductivity in iron pnictides

最大化费米表面多重性优化铁磷族化物的超导性

• 发表时间: 2011
• 作者: W. Malaeb;T. Yoshida;T. Kataoka;A. Fujimori;M. Kubota;K. Ono;H. Usui;K. Kuroki;R;Arita;H. Aoki;Y. Kamihara;M. Hirano;H. Hosono;黒木和彦
• 通讯作者: 黒木和彦

Strong Parity Mixing in the Fulde-Ferrell-Larkin-Ovchinnikov Superconductivity in Systems with Coexi sting Spin and Charge fluctuations

自旋和电荷涨落共存系统中 Fulde-Ferrell-Larkin-Ovchinnikov 超导性的强宇称混合

• 发表时间: 2009
• 期刊: Physical Review Letters 102
• 作者: H. Aizawa;K. Kuroki;T. Yokoyama;Y. Tanaka
• 通讯作者: Y. Tanaka

Pnictogen height as a possible switch between high-Tc nodeless and low-Tc nodal pairings in the iron-based superconductors

• DOI: 10.1103/physrevb.79.224511
• 发表时间: 2009-06-01
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Kuroki, Kazuhiko;Usui, Hidetomo;Aoki, Hideo
• 通讯作者: Aoki, Hideo