Artigo Acesso aberto Revisado por pares

Confining single Er3+ ions in sub-3 nm NaYF4 nanoparticles to induce slow relaxation of the magnetisation

2024; Nature Portfolio; Volume: 15; Issue: 1 Linguagem: Inglês

10.1038/s41467-024-47682-x

ISSN

2041-1723

Autores

Diogo A. Gálico, Emille M. Rodrigues, Ilias Halimi, Juho Toivola, He Zhao, Jiahui Xu, Jani O. Moilanen, Xiaogang Liu, Eva Hemmer, Muralee Murugesu,

Tópico(s)

Advanced NMR Techniques and Applications

Resumo

Molecular systems known as single-molecule magnets (SMMs) exhibit magnet-like behaviour of slow relaxation of the magnetisation and magnetic hysteresis and have potential application in high-density memory storage or quantum computing. Often, their intrinsic magnetic properties are plagued by low-energy molecular vibrations that lead to phonon-induced relaxation processes, however, there is no straightforward synthetic approach for molecular systems that would lead to a small amount of low-energy vibrations and low phonon density of states at the spin-resonance energies. In this work, we apply knowledge accumulated over the last decade in molecular magnetism to nanoparticles, incorporating Er

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