Towards a realistic description of the interplay of bosonic and fermionic degrees of freedom in the physical properties of Fe pnictide in the normal and superconducting state: multiband approaches with the account of disorder effects

对常态和超导状态下磷族铁的物理性质中玻色子和费米子自由度相互作用的真实描述：考虑无序效应的多频带方法

• 批准号: 178217279
• 负责人: Professor Dr. Jeroen van den Brink
• 金额: --
• 依托单位: Institut für Theoretische Physik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/178217279?language=en
• 关键词: Towards; realistic; description; interplay; bosonic

Fe-pnictides are of large interest due to high critical temperature of superconductive transition. We study the related rich electronic phase diagrams from a theoretical point of view, using models with realistic parameters from electron spectroscopy, neutron experiments and DFT calculations and address the role of el-el interaction, Fermi-surface nesting, el-ph coupling, and disorder. We calculate thermodynamic and transport properties of pnictides in the normal and superconducting states.

由于超导转变的临界温度高，铁磷族元素受到广泛关注。我们从理论角度研究了相关的丰富电子相图，使用来自电子能谱、中子实验和 DFT 计算的实际参数模型，并解决了 el-el 相互作用、费米表面嵌套、el-ph 耦合和紊乱。我们计算了磷族元素在正常状态和超导状态下的热力学和输运性质。