Abstract
The temperature dependent order parameter provides important information on the nature of magnetism. Using traditional methods to study this parameter in two-dimensional (2D) magnets remains difficult, however, particularly for insulating antiferromagnetic (AF) compounds. Here, we show that its temperature dependence in AF MPS3 (M(II) = Fe, Co, Ni) can be probed via the anisotropy in the resonance frequency of rectangular membranes, mediated by a combination of anisotropic magnetostriction and spontaneous staggered magnetization. Density functional calculations followed by a derived orbital-resolved magnetic exchange analysis confirm and unravel the microscopic origin of this magnetization-induced anisotropic strain. We further show that the temperature and thickness dependent order parameter allows to deduce the material’s critical exponents characterising magnetic order. Nanomechanical sensing of magnetic order thus provides a future platform to investigate 2D magnetism down to the single-layer limit.
Original language | English |
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Article number | 8503 |
Journal | Nature Communications |
Volume | 14 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2023 |
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Data supporting PhD thesis: Magnetostriction in 2D material nanomechanical resonators
Houmes, M. J. A. (Creator), Siskins, M. (Creator), Mañas Valero, S. (Creator), Baglioni, G. (Creator), Bermejillo Seco, A. (Creator), Keşkekler, A. (Creator), Alijani, F. (Creator), van der Zant, H. S. J. (Creator) & Steeneken, P. G. (Creator), TU Delft - 4TU.ResearchData, 21 Aug 2024
DOI: 10.4121/7020703e-0592-47f9-be02-4256f3cd985c
Dataset/Software: Dataset