[18p-P04-1~15] 12.2 Characterization and Materials Physics

[18p-P04-7] Temperature dependent ordering change of endohedral C₈₀ fullerene with single molecule magnets

〇(PC)Ryunosuke Sagehashi^1,2, Wei Chuang Lee², Fupin Liu³, Alexey A. Popov³, Matthias Muntwiler⁴, Bernard Delley⁴, Peter Kruger⁵, Thomas Greber² (1.IMS, 2.Inst. for Phys. Univ. of Zurich, 3.IFW, 4.PSI, 5.Grad. Sch. of Sci. and Eng., Chiba Univ.)

Keywords:

X-ray adsorption spectroscopy,single molecule magnet,linear polarization

In this study, the temperature dependence of the ordering DySc₂N ions encapsulated in C₈₀ fullerenes, which are single molecular magnets, was observed by linearly polarized X-ray absorption spectroscopy. As a result, it was confirmed that the ratio of the peak of the Dy-M₅ absorption edge to the M_4,5 absorption edge showed increasing at low temperature. In addition, a comparison of the measured results with multiplet calculations based on ligand field theory confirmed that the Dy-N bonds in the DySc₂N ions tend to align parallel to the Pt(111) surface at low temperature.