PGI-1 Talk: Bomin Kim

Start
15th January 2025 11:00 AM
End
15th January 2025 12:30 PM
Location
PGI Hall Room and Online event, via MS-Teams

Quantum Theory of Materials Seminar *Two Invited Talks today*

Research for van der Waals ferromagnets: from monolayer to bulk

Join us at on MS-Teams:
Meeting ID: 329 711 083 798
Passcode: ac7uj9V2

In this study, we investigate the magnetic properties of the van der Waals ferromagnets, Fe3GeTe2 and Fe3GaTe2. Our research focuses on two topics: 1) Strain tunability of magneto-crystalline anisotropy in monolayer and bilayer Fe3GeTe2, for which we perform band analysis. According to our band analysis, the occupation change of some bands by strain is responsible for this tunability. 2) Why Fe3GaTe2 has higher Curie temperature than Fe3GeTe2, for which we compare their magnetic exchange coefficients (Jn). While Fe3GeTe2 has larger values for the first and second nearest neighbor interactions, the summation of Jn (n3) over all neighbors in Fe3GaTe2 is larger than that in Fe3GeTe2 due to positive contributions from higher-order Jn (n3).

Contact

Prof. Dr. Stefan Blügel
Phone: +49 2461 61-4249
Email: s.bluegel@fz-juelich.de

Bomin Kim 
Department of Physics of University of Ulsan in Korea
Email: kimghye0@gmail.com

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Last Modified: 21.01.2025