Issue 10, 2024

Spectroscopic techniques to probe magnetic anisotropy and spin–phonon coupling in metal complexes

Abstract

Magnetism of molecular quantum materials such as single-molecule magnets (SMMs) has been actively studied for potential applications in the new generation of high-density data storage using SMMs and quantum information science. Magnetic anisotropy and spin–phonon coupling are two key properties of d- and f-metal complexes. Here, phonons refer to both intermolecular and intramolecular vibrations. Direct determination of magnetic anisotropy and experimental studies of spin–phonon coupling are critical to the understanding of molecular magnetism. This article discusses our recent approach in using three complementary techniques, far-IR and Raman magneto-spectroscopies (FIRMS and RaMS, respectively) and inelastic neutron scatterings (INS), to determine magnetic excited states. Spin–phonon couplings are observed in FIRMS and RaMS. DFT phonon calculations give energies and symmetries of phonons as well as calculated INS spectra which help identify magnetic peaks in experimental INS spectra.

Graphical abstract: Spectroscopic techniques to probe magnetic anisotropy and spin–phonon coupling in metal complexes

Article information

Article type
Frontier
Submitted
27 Жов 2023
Accepted
07 Лют 2024
First published
08 Лют 2024

Dalton Trans., 2024,53, 4390-4405

Spectroscopic techniques to probe magnetic anisotropy and spin–phonon coupling in metal complexes

A. T. Hand, B. D. Watson-Sanders and Z. Xue, Dalton Trans., 2024, 53, 4390 DOI: 10.1039/D3DT03609J

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