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PKNU Research 1000

NOTICE
Hwang Jae-yeol| Development of new magnetic material
WRITER 대외협력과 WRITE DAY 2020-04-03
COUNT 281
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Hwang Jae-yeol| Development of new magnetic material
대외협력과 2020-04-03 281

Development of new magnetic material to replace rare earth elements
Professor Hwang Jae-yeol’s Research Team

Hwang Jae-yeol, who is a professor of Physics department in Pukyong National University, recently announced on March 31 about his thesis worked together with the professor Kim Sung-wung of Energy Science department in Sungkyunkwan University that it was successful in synthesizing the first magnetic material with a ferromagnetic property and revealing the principle of implementing magnetism. In this study, Professor Hwang’s team developed a two-dimensional electride magnet material (Gd2C) in which electrons manifest ferromagnetic properties through strong interaction with surrounding positive ion between layers. At the same time, he succeeded in identifying the existence of interstitial anionic electrons (IAEs) between lattice framework, which have exotic magnetic moments, independently located in empty spaces between layers in a two-dimensional layered structure. This study is evaluated as having great physical meaning since it suggests a new magnetic realization principle is proposed in which interstitial anion electrons between layers have their own magnetic moments and generate magnetic properties through interaction with surrounding atoms in contrast to the general principle of having magnetism by the existing rare earth elements. The thesis ‘Ferromagnetic quasi-atomic electrons in two-dimensional electride’, which contains the results of this research, was posted in an international journal <Nature Communications> on March 23, which is a stablemate of Nature magazine. <기사보기 클릭!>

△ Conceptual image of Electride magnet material


31 March 2020


연구진

  황재열 교수 jyhwang@pknu.ac.kr
  부경대학교 자연과학대학 스마트소재물성연구실