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.

Prevalence and Factors Associated with Atrial Fibrillation in Patients with Transient Ischemic Attack or Ischemic Stroke in Northern Vietnam.

Background: The prevalence and risk factors of atrial fibrillation (AF) in patients with transient ischemic attack (TIA) or ischemic stroke in Northern Vietnam are not well understood. This study aimed to estimate the prevalence and identify factors associated with AF in this population.

Methods: A cross-sectional study was conducted on 2038 consecutive patients with TIA or ischemic stroke admitted to Bach Mai Hospital.

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.

Structural, optical and conductivity properties in tetragonal BaTi Co O (0≤ ≤0.1).

This work investigates the structure, optical and electrical conductivity properties of BaTi Co O (0≤ ≤0.1) ceramics prepared by the hydrothermal method. The X-ray diffraction and Raman scattering analysis demonstrates that the prepared samples have a single-phase tetragonal structure with 4 symmetry.