Joint electric and magnetic beam deflection experiments and quantum chemical studies of MSn₁₂clusters (M = Al, Ga, In): on the interplay of geometric structure and magnetic properties in nanoalloys

Abstract

Cold MSn12 nanoalloy clusters (M = Al, Ga, In) have been studied in combined electric and magnetic beam deflection experiments. By a quantum chemical approach the correlation between geometric structure and magnetic properties has been elucidated.

Comparison of Magnetic Deflection among Neutral Sodium-Doped Clusters: Na(H2O)n, Na(NH3)n, Na(MeOH)n, and Na(DME)n

“…Modeling the effective magnetic moment via the Curl formula 48 may be a valid approach for cluster systems which behave as rigid rotors with only a few vibrational states populated. Recently, Rivic et al 49 have elegantly demonstrated this. As stated in eq 4, we assume an exponential decay of μ 0 during the transit time t m with a characteristic relaxation time τ.…”

Magnetism of single-doped paramagnetic tin clusters studied using temperature-dependent Stern–Gerlach experiments with enhanced sensitivity: impact of the diamagnetic ligand field and paramagnetic dopant

“…For the deflection experiments in which only a single Stern–Gerlach magnet is used, the procedure is already explained in the literature. 15,41 In the case of the magnetic deflection with two parallel-aligned Stern–Gerlach magnets, mag, z can be calculated bywith cluster mass m , field length l A,1 of the first magnet A, field length l B,1 of the second magnet B, the drift length between both magnetic fields l A,2 , the drift length after magnet B l B,2 and the magnetic flux gradient . Please note that was calibrated with the Bi atom 14 and is the same for both magnets.…”

“…For the deflection experiments in which only a single Stern-Gerlach magnet is used, the procedure is already explained in the literature. 15,41 In the case of the magnetic deflection with two parallel-aligned Stern-Gerlach magnets, m mag,z can be calculated by…”

Enhanced Electronic g-Factors in Magic Number Main Group Bimetallic Nanoclusters

“…Magnetic deflection profiles (top) and difference profiles (bottom) of AlSn 12 ,, and MPb 12 with M = Al, Ga, In shown as arbitrary intensity I as a function of the mean magnetic dipole moment projected on the field direction μ̅ mag, z . The deflection data are fitted by a convolution of 3 Gaussians of which the ones corresponding to the superatomic fractions are highlighted in green.…”

“…Molecular magnetism is a thriving field of research driven by its auspicious applications in quantum technologies and molecular spintronics. − Many of the groundbreaking discoveries were made with single-molecule magnets containing d - and f -block elements which serve as paramagnetic centers. − Similar to the subclass of metallofullerenes, − tetrel clusters p-doped with elements of the triel group (Al, Ga, In) are also known to form magnetically relevant endohedral cage structures, purely based on main group elements. − The study of their magnetic properties such as the electronic g -factor does not only reveal a deep insight into the electronic structure, but also shines light on the metal–ligand (notably the metal–metal) interaction. − The recent observation of large g -factors in tin-based clusters of pyritohedral symmetry points toward a substantial impact of the spin–orbit coupling (SOC) on the magnetism of such clusters. − We now confirm the conjectured existence of even larger g -factors in lead-based clusters, which are tunable by exchange of the triel dopant, stating the by far largest g -factors of any molecular compound composed of main group elements only − and also in comparison to most single-ion magnets of high (local) symmetry …”