Pressure-controlled magnetism in 2D molecular layers

Yulong Huang (), Arjun K. Pathak (), Jeng-Yuan Tsai, Clayton Rumsey, Mathew Ivill, Noah Kramer, Yong Hu, Martin Trebbin, Qimin Yan () and Shenqiang Ren ()
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Yulong Huang: University at Buffalo, The State University of New York
Arjun K. Pathak: SUNY Buffalo State, Buffalo
Jeng-Yuan Tsai: Northeastern University
Clayton Rumsey: University at Buffalo, The State University of New York
Mathew Ivill: DEVCOM Army Research Laboratory
Noah Kramer: SUNY Buffalo State, Buffalo
Yong Hu: University at Buffalo, The State University of New York
Martin Trebbin: University at Buffalo, The State University of New York
Qimin Yan: Northeastern University
Shenqiang Ren: University at Buffalo, The State University of New York

Nature Communications, 2023, vol. 14, issue 1, 1-10

Abstract: Abstract Long-range magnetic ordering of two-dimensional crystals can be sensitive to interlayer coupling, enabling the effective control of interlayer magnetism towards voltage switching, spin filtering and transistor applications. With the discovery of two-dimensional atomically thin magnets, a good platform provides us to manipulate interlayer magnetism for the control of magnetic orders. However, a less-known family of two-dimensional magnets possesses a bottom-up assembled molecular lattice and metal-to-ligand intermolecular contacts, which lead to a combination of large magnetic anisotropy and spin-delocalization. Here, we report the pressure-controlled interlayer magnetic coupling of molecular layered compounds via chromium-pyrazine coordination. Room-temperature long-range magnetic ordering exhibits pressure tuning with a coercivity coefficient up to 4 kOe/GPa, while pressure-controlled interlayer magnetism also presents a strong dependence on alkali metal stoichiometry and composition. Two-dimensional molecular interlayers provide a pathway towards pressure-controlled peculiar magnetism through charge redistribution and structural transformation.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-38991-8

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DOI: 10.1038/s41467-023-38991-8

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