Carla Cannas

TL;DR: Photoluminescence and transmission spectroscopy is used to show that photoexcitations give rise to a conducting plasma of unbound but Coulomb-correlated electron-hole pairs at all excitations of interest for light-energy conversion and stimulated optical amplification in organic-inorganic perovskites.

TL;DR: In this paper, the structure and magnetic properties of a series of Fe2O3−SiO2 nanocomposites (9−33 wt % Fe 2O3), prepared by a sol−gel method and submitted to thermal treatments in the temperature range 300−900 °C, were investigated through XRD, TEM, EPR, and magnetic susceptibility measurements.

TL;DR: The magnetic properties of ultra-small CoFe(2)O(4) nanoparticles have been investigated by DC magnetization measurements as a function of temperature and magnetic field and localized spin-canting and cation distribution between the two sublattices of the spinel structure account quantitatively for the observed increase in saturation magnetization.

TL;DR: In this paper, the magnetic properties of CoFe2O4 nanoparticles (⟨D⟩ ≅ 4-8 nm) coated with oleic acid have been investigated in order to clarify the role of the molecular coating on the interparticle interactions and surface anisotropy.

TL;DR: The synergic combination of DC with AC magnetometry and (57)Fe Mössbauer spectroscopy represents a powerful tool to get new insights into the design of suitable heat mediators for magnetic fluid hyperthermia.