J. mater. chem. A J. mater. chem. A On-surface magnetocaloric effect for a van der Waals Gd(iii) 2D MOF grown on Si Kumar Subodh Riera Guillem Gabarró Arauzo Ana Universidad de Zaragoza Hrubý Jakub Hill Stephen Bogani Lapo Rubio-Zuazo Juan Jover Jesús Bartolomé Elena Sañudo E. Carolina 2024 research-article