Issue 11, 2024

On-surface magnetocaloric effect for a van der Waals Gd(iii) 2D MOF grown on Si

Abstract

Gd complexes have been studied as magnetic coolants due to their large magneto-caloric effect. In this work we present a Gd 2D metal–organic framework (MOF) of formula [Gd(MeCOO)(PhCOO)2] (1). We characterize the magnetic properties of 1, showing that it displays slow relaxation of the magnetization by ac susceptibility, and single-ion magnetic anisotropy using high-field EPR. By heat capacity and magnetization vs. field at various temperatures we determine the magnetic entropy change of compound 1. We then grow 1 on functionalized silicon, and show that the surface-deposited 2D MOF 1Si can be used as an on-surface magnetic cryogenic coolant.

Graphical abstract: On-surface magnetocaloric effect for a van der Waals Gd(iii) 2D MOF grown on Si

Supplementary files

Article information

Article type
Paper
Submitted
01 noy 2023
Accepted
20 fev 2024
First published
20 fev 2024
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. A, 2024,12, 6269-6279

On-surface magnetocaloric effect for a van der Waals Gd(III) 2D MOF grown on Si

S. Kumar, G. G. Riera, A. Arauzo, J. Hrubý, S. Hill, L. Bogani, J. Rubio-Zuazo, J. Jover, E. Bartolomé and E. C. Sañudo, J. Mater. Chem. A, 2024, 12, 6269 DOI: 10.1039/D3TA06648G

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