Research Progress on the 11 and 122 Systems of Iron-Based Superconducting Materials

Superconductivity was discovered 113 years ago in 1911. Due to the unique properties of superconducting materials, such as zero resistivity and perfect diamagnetism, they play a critical role in energy, healthcare, and other industries. As scientific research continues to advance, various types of superconducting materials, including iron-based superconducting materials, have attracted increasing attention from scientists. This paper provides an overview of the research progress and the significant development potential of various iron-based superconducting materials (primarily the 11, 122 and 1111 systems), with the aim of offering guidance and suggestions to researchers.