Magnetic Properties of 2D Transition Metal Dihalides

CIC nanoGUNE Seminars

Maxin Ilin
CFM, Materials Physics Center
CIC nanoGUNE Seminar room, Tolosa Hiribidea 76, Donostia-San Sebastian
Mato Knez, Roman Parkhomenko
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Magnetic Properties of 2D Transition Metal Dihalides

Layered van der Waals materials are widely used in many different research areas. In majority of cases, they are exfoliated flakes that pass only quick test of functional properties without thorough characterization. In this talk, I will present results of detailed investigation of the magnetic, electronic and structural properties of single layers of the Transition Metal DiHalides (TMDH) acquired using various synchrotron- and laboratory-based techniques (LT-STM, XAS/XMCD, ARPES, PEEM/LEEM etc). With a help of these data I will discuss peculiarities of the growth of these materials on various single crystal substrates and a correlation between the magnetic properties of the single-layer TMDH films [1,2] and complex magnetic structures of the bulk TMDH crystals [3].

[1] D. Bikaljević et al., Noncollinear Magnetic Order in Two-Dimensional NiBr2 Films Grown on Au(111), ACS Nano 15, 14985 (2021).

[2] S. E. Hadjadj et al., Epitaxial Monolayers of the Magnetic 2D Semiconductor FeBr2 Grown on Au(111), Chem. Mater. 35, 9847 (2023).

[3] M. A. McGuire, Crystal and Magnetic Structures in Layered, Transition Metal Dihalides and Trihalides, Crystals 7, 121 (2017).