2017/08/30 by Fabian Fritz, Rasmus Westerström, Aram Kostanyan +14 · 4 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced NMR Techniques and Applications #Analytical Chemistry (journal) #Carbon nanotube #Chemistry #Fullerene Chemistry and Applications #Graphene research and applications #High-resolution transmission electron microscopy #Ion #Lanthanide #Magnetic circular dichroism #Materials science #Metallofullerene #Nanoscopic scale #Nanostructure #Nanotechnology #Spectral line #Transmission electron microscopy #X-ray magnetic circular dichroism #cond-mat.mtrl-sci
paper · pdf · doi:10.1088/1361-6528/aa8b4c
published in Nanotechnology 28(43), 435703 (IOP Publishing)
arxiv created 2017/08/30 · openalex publication_date 2017/09/08 · arxiv updated 2017/09/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Abstract Endohedral lanthanide ions packed inside carbon nanotubes (CNTs) in a one-dimensional assembly have been studied with a combination of high resolution transmission electron microscopy (HRTEM), scanning transmission x-ray microscopy (STXM), and x-ray magnetic circular dichroism (XMCD). By correlating HRTEM and STXM images we show that structures down to 30 nm are resolved with chemical contrast and record x-ray absorption spectra from endohedral lanthanide ions embedded in individual nanoscale CNT bundles. XMCD measurements of an Er 3 N@C 80 bulk sample and a macroscopic assembly of filled CNTs indicate that the magnetic properties of the endohedral Er 3+ ions are unchanged when encapsulated in CNTs. This study demonstrates the feasibility of local magnetic x-ray characterisation of low concentrations of lanthanide ions embedded in molecular nanostructures.