Thin Layers of Molecular Magnets

Molecular Spins in the Context of Quantum Technologies

“…Not all, but few molecules, were robust enough to substantially maintain their (static) magnetic features when dispersed. However subtle effects may occur when the environment change and these need to be carefully checked case by case [21]. We expect that different molecules can be designed for specific ambient/applications, thus, for instance, molecules with external organic ligand and specific linkers will be more suitable for biological applications; molecules that can be sublimed and with linkers designed to graphitic or CMOS compatible sustrate will better work embedded in electronic circuits; while molecules with robust periphery (e.g., oxygen ligand) can be possible applied in ambient (air) conditions.…”

Air-Stable Chiral Single-Molecule Magnets with Record Anisotropy Barrier Exceeding 1800 K

“…Organizing and (electrical or magnetic) addressing single-molecule magnets (SMMs) are the prerequisites for achieving their potential applications in molecular spintronics and information storage. − Two main strategies exist for transferring SMMs onto a surface, relying on either weaker aspecific interactions ( physisorption ) or substrate-specific chemical bonds ( chemisorption ). , Physisorption has been widely used for lanthanide phthalocyanine complexes, which possess extraordinary robustness to withstand thermal evaporation in ultrahigh vacuum (UHV); however, most SMMs are intrinsically unsuitable for vapor-phase processing due to their chemical instability. Compared to physisorption, chemisorption normally carried out in solution involves the interaction of a native substrate with functionalized SMMs carrying surface-binding groups.…”

A tetrairon(III) single-molecule magnet and its solvatomorphs: synthesis, crystal structures and vapor-phase processing

“…Three positions were resolved for the disordered CCl4 molecule, with refined occupancies 0.734(2):0.131(2):0.135 (2), constrained to sum up to unity. The minority components were forced to have a similar geometry (SAME) to the majority one and were treated isotropically, with one common displacement parameter for Cl and one for C atoms.…”

“…The processing of single-molecule magnets (SMMs) into films with variable thickness, down to monolayers or sub-monolayers [1,2], is motivated by the perspective use of these magnetically bistable materials in spintronic devices [3] or as individually addressable, surface-supported magnetic bits [4]. A major breakthrough in the field was the recent discovery that some organometallic monodysprosium(III) SMMs retain a memory effect above the normal boiling point of liquid dinitrogen [5][6][7].…”