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

Journal article

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

Authors: Kumar, S; Riera, GG; Arauzo, A; Hrubý, J; Hill, S

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Royal Society of Chemistry
• Journal: Journal of Materials Chemistry A: materials for energy and sustainability
• Volume: 12
• Issue: 11
• Pages: 6269-6279
• Publication date: 2024-03-12
• DOI: 10.1039/d3ta06648g
• EISSN: 2050-7496
• ISSN: 2050-7488
• Language: English
• Keywords: Chemical engineering; Organic chemistry; van der Waals force; Magnetic field; Physics; Molecule; Magnetization; Materials science; Magnetic refrigeration; Chemistry; Engineering