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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

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.

Detaljer

Författare
  • S. M. Avdoshenko
  • Fabian Fritz
  • Christin Schlesier
  • Aram Kostanyan
  • Jan Dreiser
  • Martina Luysberg
  • Alexey Popov
  • Carola Meyer
  • Rasmus Westerström
Enheter & grupper
Externa organisationer
  • Leibniz Institute for Solid State and Materials Research
  • University of Osnabrück
  • Jülich Research Centre
  • University of Zurich
  • Paul Scherrer Institute
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Den kondenserade materiens fysik
Originalspråkengelska
Sidor (från-till)18153-18160
TidskriftNanoscale
StatusPublished - 2018
PublikationskategoriForskning
Peer review utfördJa