Juyoung Jeong Jeehoon Kim Hye Jung Chang 2024-01-12T05:42:36Z 2024-01-12T05:42:36Z 2021-09-29 2018-11-13 https://pubs.kist.re.kr/handle/201004/79050 Lorentz Transmission electron microscopy (LTEM) is one of the powerful instruments to observe the nanoscalestructural and the magnetic field features of materials simultaneously. Recently, topological-in-origin robustmagnetic skyrmions have been reported in sesveral mateiral systems utilizing LTEM, mostly in thenoncentrysymmetric B20 crystal system at low temperature, which limits the practical application. Here, we reportnovel hard skyrmions in one of the strongest ferromagnets, which can be operated at high tempearture above roomtemperature. This is of importance stepping stone since it pave the way for an immense application potential byproviding a new approach to make skyrmions in hard magnet materials through approporiate field cooling. Thecontrol and visuallization was performed in the LTEM (FEI; Titan) equipped with heating holder. Various skyrmionlike bubbles formed near the skyrmion window will be also discussed in the presentation. English The Korean Institute of Metals and Materials skyrmion permenat magnet lorentz TEM Finding Skyrmion in a Strong Permanent Magnet Using Lorentz TEM Conference 1 Internatioanl Conference on Electronic Materials and Nanotechnology for Green Environment (ENGE 2018) Internatioanl Conference on Electronic Materials and Nanotechnology for Green Environment (ENGE 2018) KO 라마다 제주 호텔 2018-11-11