In this article, the magnetic properties of gadolinium chloride-filled double-walled carbon nanotubes (GdCl3@DWNTs) in temperature range 2-300 K are explored. The temperature-dependent phonon frequencies G-band were studied from 80-300 to investigate effect on ordering. Temperature-dependent susceptibility measurements show that GdCl3@DWNTs sample has a pronounced superparamagnetic phase 83 K. ...

2014 The energy distribution of donor-bound magnetic polarons is studied in CdMnS and CdMnSe alloys, using the spin-flip Raman scattering technique. The influence of magnetic fluctuations on the lineshapes is proved Evidence of the superparamagnetism of giant moments associated to magnetic polarons is also reported J. Physique 45 (1984) 1071-1077 JUIN 1984, Classification Physics Abstracts 78.2...

objective(s): this paper describes coating of magnetite nanoparticles (mnps) with amorphous silica shells.   materials and methods: first, magnetite (fe3o4) nps were synthesized by co-precipitation method and then treated with stabilizer molecule of trisodium citrate to enhance their dispersibility. afterwards, coating with silica was carried out via a sol-gel approach in which the electrostati...