Partial magnetic ordering in one-dimensional arrays of endofullerene single-molecule magnet peapods

Autor(en): Avdoshenko, Stanislav M. 
Fritz, Fabian 
Schlesier, Christin 
Kostanyan, Aram 
Dreiser, Jan 
Luysberg, Martina 
Popov, Alexey A. 
Meyer, Carola 
Westerstrom, Rasmus 
Stichwörter: CAGE; Chemistry; Chemistry, Multidisciplinary; MAGNETORESISTANCE; Materials Science; Materials Science, Multidisciplinary; Nanoscience & Nanotechnology; Physics; Physics, Applied; RAY CIRCULAR-DICHROISM; Science & Technology - Other Topics; SPIN
Erscheinungsdatum: 2018
Volumen: 10
Ausgabe: 38
Startseite: 18153
Seitenende: 18160
The magnetic ordering and bistability of one-dimensional chains of endofullerene Dy2ScN@C-80 single-molecule magnets (SMMs) packed inside single-walled carbon nanotubes (SWCNTs) have been studied using high-resolution transmission electron microscopy (HRTEM), X-ray magnetic circular dichroism (XMCD), and ab initio calculations. X-ray absorption measurements reveal that the orientation of the encapsulated endofullerenes differs from the isotropic distribution in the bulk sample, indicating a partial ordering of the endofullerenes inside the SWCNTs. The effect of the one-dimensional packing was further investigated by ab initio calculations, demonstrating that for specific tube diameters, the encapsulation is leading to energetically preferential orientations of the endohedral clusters. Additionally, element-specific magnetization curves reveal a decreased magnetic bistability of the encapsulated Dy2ScN@C-80 SMMs compared to the bulk analog.
ISSN: 20403364
DOI: 10.1039/c8nr05386c

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