Stability and magnetic properties of transition metal (V, Cr, Mn, and Fe) doped cobalt oxide clusters: a density functional theory investigation.

Co TMO ( = 6-8), (TM = V, Cr, Mn, and Fe) clusters are investigated using density functional theory calculations. The transition metal atoms preferentially replace one Co atom at sites where the number of metal-oxygen bonds is maximized, forming more stable structures. The evaporation of a Co atom is the most fragile dissociation channel for both pure and doped species.

Structural, optical, magnetic properties and energy-band structure of MFeO (M = Co, Fe, Mn) nanoferrites prepared by co-precipitation technique.

MFeO (M = Co, Fe, Mn) nanoparticles were successfully formed through the chemical co-precipitation technique. X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray analysis were used to investigate samples' structural properties. The investigated structural properties included phases formed, crystallite size, cation distribution, hopping length, bond length, bond angle, edge length, and shared and unshared octahedral edge length.

Determination of the crystalline size of hexagonal LaSrMnO ( = 0.3) nanoparticles from X-ray diffraction - a comparative study.

The electronic, magnetic, optical and elastic properties of nanomaterials are governed partially by the crystallite size and crystal defects. Here, the crystalline size of hexagonal LaSrMnO ( = 0.3) nanoparticles was determined using various methods.

Towards hard-magnetic behavior of CoFeO nanoparticles: a detailed study of crystalline and electronic structures, and magnetic properties.

We have used the coprecipitation and mechanical-milling methods to fabricate CoFeO nanoparticles with an average crystallite size () varying from 81 to ∼12 nm when changing the milling time ( ) up to 180 min. X-ray diffraction and Raman-scattering studies have proved the samples crystalizing in the spinel structure. Both the lattice constant and residual strain tend to increase when () increases (decreases).

Multifunctional nanocarriers of FeO@PLA-PEG/curcumin for MRI, magnetic hyperthermia and drug delivery.

Despite medicinal advances, cancer is still a big problem requiring better diagnostic and treatment tools. Magnetic nanoparticle (MNP)-based nanosystems for multiple-purpose applications were developed for these unmet needs. This study fabricated novel trifunctional MNPs of FeO@PLA-PEG for drug release, MRI and magnetic fluid hyperthermia.