Intrinsic ferromagnetism in atomically thin two-dimensional organic-inorganic van der Waals crystals

Dipayan Sen; Gour Jana; Nitin Kaushal; Anamitra Mukherjee; Tanusri Saha-Dasgupta

doi:10.1103/PhysRevB.102.054411

Intrinsic ferromagnetism in atomically thin two-dimensional organic-inorganic van der Waals crystals

Dipayan Sen, Gour Jana, Nitin Kaushal, Anamitra Mukherjee, Tanusri Saha-Dasgupta

Computational Chemistry and Nanomaterial

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Following the recent excitement in two-dimensional (2D) magnetism, we propose a yet-unexplored class of 2D ferromagnets derived out of Cr-based organic-inorganic layered compounds. Our density functional study in conjunction with model calculation establishes that assisted by the finite magnetocrystalline anisotropy, the ferromagnetic long-range order survives at the atomically thin limit consisting of monolayer of Cr spins, with calculated magnetic transition temperatures of ∼10-20-K. Upon application of modest magnetic field, the magnetic transition temperature is found to increase substantially. The calculated exfoliation energy suggests that synthesis of these 2D compounds through mechanical exfoliation is possible, which should encourage future experiments on this proposed class of 2D magnets.

Original language	English
Article number	054411
Journal	Physical Review B
Volume	102
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.102.054411
State	Published - Aug 1 2020

Funding

T.S.-D. thanks the Department of Science and Technology, India, for the support through the Thematic Unit of Excellence. D.S. thanks the University Grants Commission, Government of India, for providing financial support under the D. S. Kothari Post Doctoral Fellowship scheme. T.S.-D. and D.S. thank S. Bandyopadhyay for fruitful discussions.

Funders	Funder number
Department of Science and Technology, Ministry of Science and Technology, India
University Grants Commission

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Intrinsic ferromagnetism in atomically thin two-dimensional organic-inorganic van der Waals crystals

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