高级检索

第一原理计算在铁(镍)基超导体中的应用

First-principles studies on iron (nickel)-based superconductors

  • 摘要: 铁(镍)基超导体的发现引起了凝聚态物理界的广泛兴趣和关注.第一原理计算以其快速、准确等优点在铁(镍)基超导研究过程中做出了巨大贡献.文章主要介绍了第一原理计算在该研究领域所取得的成果,其中包括电子结构计算,磁性基态的寻找和解释,声子谱和电声子耦合,以及关联效应在该类材料中的作用等.文章还简略介绍了目前的研究现状以及存在的问题,分析了未来的研究方向和可能的解决办法.

     

    Abstract: Iron (nickel)-based superconductors have attracted tremendous interest recently in the field of condensed matter physics, and large number of impressive works have been done both experimentally and theoretically. In particular, first-principles calculations have played an important role in the understanding of the physics. In this paper we review some basic aspects of this new class of high critical temperature superconductors, including the basic electronic structure, ground state and magnetic instability, phonon spectrum, and electron-phonon coupling, as well as the role of correlations in these compounds. We also discuss some of the diffculties encountered in first principles calculations and their possible solutions.

     

/

返回文章
返回