Choi, Seungchul Lee, In Hak Khim, Yeong Gwang Kee, Jung Yun Rhee, Tae Gyu Seoh, Hyo Won Kim, Hyuk Jin Choi, Jun Woo Chang, Young Jun 2025-03-24T01:00:09Z 2025-03-24T01:00:09Z 2025-03-19 2025-03 1567-1739 https://pubs.kist.re.kr/handle/201004/152101 Among two-dimensional (2D) van der Waals (vdW) materials, Fe3GeTe2 (FGT), a 2D vdW ferromagnetic material, has gained significant interest due to its high Curie temperature and perpendicular magnetic anisotropy. Despite the difficulties in fabricating high-quality crystals, the flux-assisted growth (FAG) method has recently emerged as a promising technique for synthesizing 2D vdW materials. In this study, we employed the FAG method to fabricate crystalline FGT nanosheets under varied growth parameters. Magneto-optical Kerr effect (MOKE) measurements revealed that the FGT nanosheets exhibit perpendicular magnetic anisotropy with a Curie temperature of 222 K. Additionally, the MOKE data indicate the presence of exchange bias phenomena, likely due to the FeO phase associated with oxidized FGT surface. These findings enhance our understanding of the fundamental physics of FGT nanosheets and contribute to the advancement of diverse 2D magnetic device applications. English The Korean Physical Society Magnetic properties of van der Waals ferromagnet Fe3GeTe2 nanosheets grown by flux-assisted growth Article 10.1016/j.cap.2025.01.009 1 Current Applied Physics, v.71, pp.169 - 174 Current Applied Physics 71 169 174 N scie scopus kci ART003188085 001416314400001 2-s2.0-85214833487 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article EXCHANGE BIAS FIELD 2D material van der Waals ferromagnet Fe 3 GeTe 2 Flux-assisted growth Exchange bias