Time: 14:00, Wednesday. September 8th 2021 (Time zone UTC+2) 

Zoom link: https://lu-se.zoom.us/j/66804732319

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Short biography

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Prof. Manh-Huong Phan is the group leader of the Advanced Materials & Sensors Laboratory, University of South Florida, USA. Prof. Phan’s research interests lie in the physics and applications of magnetic materials. He is a leading expert in the area of functional magnetic materials and nanostructures with magnetocaloric and magnetoimpedance effects for energy-efficient magnetic refrigeration and smart sensor technologies. He has co-authored more than 300 peer-reviewed journal papers, 6 books and book chapters (h-index: 53) with a total citation over 11500. Presently, he serves as an Editor for Journal of Electronic Materials, the Editor for Applied Sciences, the Managing Editor for Journal of Science: Advanced Materials and Devices, and the Editorial Board Member of Nature: Scientific Reports. He has served as “Lead Guest Editor” for special issues published in Nanomaterials, Journal of Electronics, IEEE Transactions on Magnetics, and Journal of Applied Physics. He is a reviewer for more than 100 major journals such as Nature and Nature Materials, with 14 outstanding referee awards. In 2020, Prof. Phan was featured in the list of the World's Top 2 Percent Scientists.

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We will have a great honor to host Prof. Phan for the first knowledge sharing seminar on his research and current progress in his field of study. This will be a good chance for not only leaners in his field but also young researchers to get inspired into science and technology. 

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Title

Emerging Two-Dimensional van der Waals Quantum Magnets

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Abstract

Two-dimensional (2D) van der Waals magnets are emerging candidates for ultralow-power and ultra-compact device applications. However, most of the discovered materials require cryogenic temperatures or other special protections to function. Therefore, it becomes increasingly important to have control over their unique atomic-level magnetism at temperatures close to room temperature, at which most of our devices operate. To this end, we have discovered strong and tunable room temperature ferromagnetism in atomically thin transition metal dichalcogenides (TMDs), including metallic monolayers of VSe2 [1] and semiconducting monolayers of V-doped WS2/WSe2 [2,3], that have the potential to transform the fields of spintronics, opto-spincaloritronics [4], valleytronics, and quantum computation. In this talk, I will present research progress on 2D magnetism, including our new findings of the novel thermally induced spin flipping effect [3] and light-tunable ferromagnetism [5] in V-doped TMD monolayers (V-WS2 and V-WSe2) at room temperature, the tunable exchange bias effect and light-mediated magnetism in VSe2/MoS2 or VSe2/WS2 heterostructures, as well as the development of a new class of highly sensitive magnetic sensor using a single layer magnet of VSe2 [6]. Challenges and opportunities in this rapidly expanding research field will be discussed.    

References

[1] M. Bonilla, M.H. Phan, et al., Nature Nanotechnology 13, 289 (2018)

[2] F. Zhang, M.H. Phan, et al., Advanced Science 7, 2001174 (2020)

[3] Y.T.H. Pham, M.H. Phan, et al., Advanced Materials 32, 2003607 (2020)

[4] V. Kalappattil, M.H. Phan, et al., Materials Horizons 7, 1413 (2020)

[5] V.O. Jimenez, M.H. Phan, et al., Advanced Electronic Materials 7, 2100030 (2021)

[6] V.O. Jimenez, M.H. Phan, et al., Scientific Reports 10, 4789 (2020)

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