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< World's First "Magnetic" Electride Discovered > (January 24)

- Breakthrough represents pioneering discovery in a new field of study

The Ministry announced that a research team predicted the existence of a new two-dimensional electride through computational science, and succeeded in synthesizing two-dimensional electrides that expresses magnetism with only non-magnetic elements.

The study was carried out by a team headed by Professor Kim Sung-woong (Sungkyunkwan University) in collaboration with the Oak Ridge National Laboratory, Mississippi State University, Kunsan National University and Kangwon National University with assistance from the Ministry's Basic Technology Development Program Future Material Discovery Project; the results were published in two papers in the online edition of the Journal of the American Chemical Society (IF 13.083), the world's most authoritative journals in chemistry published by the American Chemical Society.

- Paper: Two-dimensional electrides predicted by global structure optimization

- Paper: Strong localization of anionic electrons at interlayer for electrical and magnetic anisotropy in two-dimensional Y2C electride

In general, elements combine together to form compounds whose characteristics are determined by the component elements' orbital electrons. The behavior of electrides, however, are determined by the interstitial electrons that exist in the real emptry space (real space) within the compound.

The research team used data mining technology to predict, with the use of a supercomputer, electrides that gather together in two-dimensional space, and reported the existence of electrides that exhibit magnetism that is synthesized with non-magnetic elements discovered through the process.

The research is significant for presenting a new concept for material research that goes beyond traditional material research methodologies based on experiential data by applying data mining computing technology to identify a new material, and then further advancing and refining the material.

Professor Kim said, "The development of a magnetic material using interstitial electrons in electrides composed exclusively of non-magnetic elements is a significant step forward in the study of electride compounds, a new and unexplored frontier," adding that "the results show the possibly of fabricating new magnetic materials that do not require the rare-earth elements previously deemed indispensible."

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