Epitaxial growth of 2D van der Waals magnets and heterostructures with topological insulators

Roland K. Kawakami

doi:10.1117/12.2651354

17 March 2023 Epitaxial growth of 2D van der Waals magnets and heterostructures with topological insulators

Roland K. Kawakami

Proceedings Volume PC12423, 2D Photonic Materials and Devices VI; (2023) https://doi.org/10.1117/12.2651354
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

I will discuss our latest advances on the epitaxial growth of 2D van der Waals magnets and their integration with topological insulators (TI). These may produce novel topological states and highly efficient spin-orbit torque. Our initial studies of MnSe2 growth on Bi2Se3 showed a tendency for the interdiffusion of Mn into the Bi2Se3, ultimately leading to the synthesis of MnBi2Se4, a new magnetic TI. For bilayers of 2D magnets and TIs, we first optimized Fe3GeTe2 by studying its growth on Ge(111) and subsequently integrated with Bi2Te3. Interestingly, we observe room temperature ferromagnetism in Fe3GeTe2/Bi2Te3 heterostructures by varying the growth conditions.

Conference Presentation

Citation Download Citation

Roland K. Kawakami "Epitaxial growth of 2D van der Waals magnets and heterostructures with topological insulators", Proc. SPIE PC12423, 2D Photonic Materials and Devices VI, (17 March 2023); https://doi.org/10.1117/12.2651354

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