Evidence of ferromagnetic behaviour in carbon nanospheres synthesised by the chemical vapour deposition technique

The magnetic and electrical properties of two different sets of carbon nanospheres synthesised by chemical vapour deposition were investigated, using a state-of-the-art Physical Property Measurement System (PPMS). Scanning electron microscopy imaging of the carbon nanospheres revealed a difference i...

Full description

Saved in:
Bibliographic Details
Published in:Physica. E, Low-dimensional systems & nanostructures Low-dimensional systems & nanostructures, 2024-05, Vol.159, p.115909, Article 115909
Main Authors: Mouane, Othmane, Sideras-Haddad, Elias, Wamwangi, Daniel, Mashindi, Victor, Peters, Gerrard, Erasmus, Rudolph M., Naidoo, Deena, Gkanetsos, Theodoros, Coville, Neil J.
Format: Article
Language:English
Subjects:
Carbon nanospheres
Ferromagnetism
Super-paramagnetism
Variable range hoping
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The magnetic and electrical properties of two different sets of carbon nanospheres synthesised by chemical vapour deposition were investigated, using a state-of-the-art Physical Property Measurement System (PPMS). Scanning electron microscopy imaging of the carbon nanospheres revealed a difference in size with a diameters distribution of approximately 200–400 nm and 400–500 nm. PPMS magnetic measurements of the 400–500 nm diameter carbon nanospheres exhibited diamagnetism at high temperatures and clear superparamagnetic behaviour at very low temperatures (
ISSN:1386-9477
1873-1759
DOI:10.1016/j.physe.2024.115909