Electronic structure of cuprate superconductors close to their ground state.

接近基态的铜酸盐超导体的电子结构。

• 批准号: 281518034
• 负责人: Dr. Sergey Borisenko
• 金额: --
• 依托单位: Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden (IFW) e.V.
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/281518034?language=en
• 关键词: Electronic; structure; cuprate; superconductors; close

We propose to investigate the electronic structure of cuprates superconductors by means of angle-resolved photoemission spectroscopy at ultra-low temperatures. We will focus on those materials for which precise quantitative information on low-energy electron dynamics can be extracted and subsequently used to test theories. Special attention will be paid to possible presence of density waves coexisting or competing with the superconductivity. In particular, charge-density wave order observed by several methods in several families of p- and n-doped cuprates will be studied aiming to understand its possible interrelation with pseudogap, antiferromagnetic fluctuations and superconductivity. Systematic studies of fine details of the electronic structure across generic phase diagrams are anticipated to identify the key ingredients of the superconductivity and provide possible practical routes for a targeted synthesis of new materials.

本文提出用角分辨光电子能谱研究超低温铜氧化物超导体的电子结构。我们将集中在这些材料的精确定量信息的低能电子动力学可以提取，随后用于测试理论。特别注意可能存在的密度波共存或竞争的超导性。特别是，在几个家庭的p-和n-掺杂的铜氧化物的几种方法观察到的电荷密度波顺序将进行研究，旨在了解其可能的相互关系与赝能隙，反铁磁波动和超导性。对通用相图中电子结构细节的系统研究有望确定超导性的关键成分，并为有针对性的新材料合成提供可能的实用途径。

项目成果

Nematic superconductivity in LiFeAs

• DOI: 10.1103/physrevb.102.184502
• 发表时间: 2020-11-03
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Kushnirenko, Y. S.;Evtushinsky, D., V;Borisenko, S., V
• 通讯作者: Borisenko, S., V

Mass Enhancements and Band Shifts in Strongly Hole-Overdoped Fe-Based Pnictide Superconductors: KFe2As2 and CsFe2As2

• DOI: 10.1007/s10948-017-4434-5
• 发表时间: 2018-01
• 期刊: Journal of Superconductivity and Novel Magnetism
• 影响因子: 1.8
• 作者: S. Drechsler;H. Rosner;V. Grinenko;V. Grinenko;S. Aswartham;I. Morozov;I. Morozov;I. Morozov;M. Liu;M. Liu;A. Boltalin;K. Kihou;Chul-Ho Lee;Timur K. Kim;D. Evtushinsky;J. Tomczak;S. Johnston;S. Borisenko

Three-dimensional superconducting gap in FeSe from angle-resolved photoemission spectroscopy

• DOI: 10.1103/physrevb.97.180501
• 发表时间: 2018-05-02
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Kushnirenko, Y. S.;Fedorov, A., V;Borisenko, S., V
• 通讯作者: Borisenko, S., V

Anomalous temperature evolution of the electronic structure of FeSe

• DOI: 10.1103/physrevb.96.100504
• 发表时间: 2017-02
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Y. Kushnirenko;A. Kordyuk;A. Fedorov;E. Haubold;T. Wolf;B. Buchner;S. Borisenko

Stripe order of La1.64Eu0.2Sr0.16CuO4 in magnetic fields studied by resonant soft x-ray scattering

通过共振软 X 射线散射研究磁场中 La1 64Eu0 2Sr0 16CuO4 的条带序

• DOI: 10.1103/physrevb.94.165157
• 发表时间: 2016
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: M. Zwiebler;E. Schierle;E. Weschke;B. Büchner;A. Revcolevschi;Patrick Ribeiro;J. Geck;J. Fink
• 通讯作者: J. Fink