Strong carbon cage influence on the single molecule magnetism in Dy-Sc nitride clusterfullerenes.

Christin Schlesier,Alexey A Popov,Aram Kostanyan,Shangfeng Yang,Rasmus Westerström,Anja U B Wolter,Thomas Greber,Lukas Spree,Ariane Brandenburg

doi:10.1039/c8cc05029e

Abstract

Magnetic properties of endohedral metallofullerenes with nitride clusters DySc2N and Dy2ScN and different carbon cages are studied by SQUID magnetometry. All molecules behave as single molecule magnets (SMMs) and exhibit magnetic hysteresis. It is found that the blocking temperature of magnetization and relaxation times strongly depend on the fullerene cage, with the C80-Ih isomer offering the best SMM properties.

Highlights

Christin Schlesier,a Lukas Spree,a Aram Kostanyan,b Rasmus Westerstrom,b Ariane Brandenburg, a Anja U
All molecules behave as single molecule magnets (SMMs) and exhibit magnetic hysteresis
Among the various lanthanide clusterfullerenes, DySc2N and Dy2ScN clusterfullerenes showed the best SMM performance presumably due to the strong ligand field created by the nitride ion located at the short distance from the lanthanide.4b,5,9 Studies of the magnetic properties of nitride clusterfullerenes have been limited so far to the C80-Ih cage because the corresponding endohedral metallofullerenes (EMFs) are usually produced in much higher yields and constitute ca. 80% of the nitride clusterfullerenes mixtures

Summary

Introduction

Christin Schlesier,a Lukas Spree,a Aram Kostanyan,b Rasmus Westerstrom,b Ariane Brandenburg, a Anja U. Magnetic properties of endohedral metallofullerenes with nitride clusters DySc2N and Dy2ScN and different carbon cages are studied by SQUID magnetometry.

Results

Conclusion