Magnetic anisotropy investigation on light lanthanide complexes

Area of Science:

• Inorganic Chemistry
• Materials Science
• Magnetochemistry

Background:

• Lanthanide complexes are of interest due to their unique magnetic properties.
• Understanding magnetic anisotropy is crucial for developing advanced magnetic materials.

Purpose of the Study:

• To synthesize and characterize new light lanthanide complexes.
• To investigate the magnetic anisotropy of these complexes and its origin.

Main Methods:

• Synthesis of lanthanide complexes: Ln(fdh)3(bpy), where Ln = Ce(III), Pr(III), Nd(III).
• Characterization using angle-resolved magnetometry.
• Theoretical validation through ab initio calculations.

Main Results:

• The synthesized complexes displayed Ising-type magnetic anisotropy.
• Magnetic easy axes were observed to align with the negative charge dense direction within the crystal field.
• Experimental results were corroborated by ab initio calculations.

Conclusions:

• The crystal field electron density distribution is the primary determinant of magnetic anisotropy in light lanthanides.
• This finding provides insights into the rational design of lanthanide-based magnetic materials.