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

Summary, in English

The magnetic ordering and bistability of one-dimensional chains of endofullerene Dy2ScN@C80 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@C80 SMMs compared to the bulk analog.

• Author: S. M. Avdoshenko; Fabian Fritz; Christin Schlesier; Aram Kostanyan; Jan Dreiser; Martina Luysberg; Alexey Popov; Carola Meyer; Rasmus Westerström
• Department/s: Synchrotron Radiation Research
• Publishing year: 2018
• Language: English
• Pages: 18153-18160
• Publication/Series: Nanoscale
• Links: http://dx.doi.org/10.1039/C8NR05386C
• Document type: Journal article
• Publisher: Royal Society of Chemistry
• Topic: Condensed Matter Physics (including Material Physics, Nano Physics)
• Status: Published
• ISBN/ISSN/Other: ISSN: 2040-3372