The metallofullerene field-induced single-ion magnet HoSc2 N@C80

Jan Dreiser; Rasmus Westerström; Yang Zhang; Alexey A Popov; Lothar Dunsch; Karl Krämer; Shi-Xia Liu; Silvio Decurtins; Thomas Greber

doi:10.1002/chem.201403042

The metallofullerene field-induced single-ion magnet HoSc2 N@C80

Chemistry. 2014 Oct 13;20(42):13536-40. doi: 10.1002/chem.201403042. Epub 2014 Aug 27.

Authors

Jan Dreiser¹, Rasmus Westerström, Yang Zhang, Alexey A Popov, Lothar Dunsch, Karl Krämer, Shi-Xia Liu, Silvio Decurtins, Thomas Greber

Affiliation

¹ Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland); Swiss Light Source, Paul Scherrer Institut, 5232 Villigen PSI (Switzerland). jan.dreiser@epfl.ch.

PMID: 25164532
DOI: 10.1002/chem.201403042

Abstract

The low-temperature magnetic properties of the endohedral metallofullerene HoSc2 N@C80 have been studied by superconducting quantum interference device (SQUID) magnetometry. Alternating current (ac) susceptibility measurements reveal that this molecule exhibits slow relaxation of magnetization in a small applied field with timescales in the order of milliseconds. The equilibrium magnetic properties of HoSc2 N@C80 indicate strong magnetic anisotropy. The large differences in magnetization relaxation times between the present compound and the previously investigated DySc2 N@C80 are discussed.

Keywords: endohedral fullerenes; holmium; lanthanides; magnetic anisotropy; single-ion magnets.