Multi-band Eilenberger theory of superconductivity with systematic low-energy projection

2016 Fiscal Year Final Research Report

• Project/Area Number: 26800197
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics II
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: Nagai Yuki 国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 研究職 (20587026)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 超伝導 / マルチバンド超伝導 / 非一様超伝導 / 準古典近似

Outline of Final Research Achievements

Recent-discoverd superconductors, such as iron-based high-Tc superconductors or topological superconductors, have many degrees of freedom to describe the material properties. These are called the multi-band superconductors. The quasiclassical Eilenberger theory is a powerful theory to understand the properties of superconductors in magnetic fields and superconductor-normal junctions. But, This theory could not be applied to the multi-band superconductors. We extend this quasiclassical Eilenberger theory to multi-band superconductors.

Free Research Field

物性理論