Magnetic behavior of clusters of ferromagnetic transition metals

Magnetic behavior of clusters of ferromagnetic transition metals.

Ferromagnetic Metals in High Magnetic Fields

. High-field susceptibility results ~re presented for MOssbauer measurements on iron at low temperatures m field.s up ~o 13~ kOe and magnetIZatIOn measurements on iron and nickel single crystals in fields up to 148 kOe WIth vibratmg sample magneto~eters. The Mossbauer measurements give the hyperfine field H n = Hint(HO-1!I:!M) +AH, where !lint IS the hyperfine field at zero applied field,Ho is ...

The Effect of Transition Metals Incorporation on the Structural and Magnetic Properties of Magnesium Oxide Nanoparticles

Pure and doped magnesium oxide nanoparticles were successfully synthesized employing a sol-gel process. The synthesized nanoparticles were characterized by thermal differential analysis, X-ray powder diffraction, transmission electron microscopy, scanning electron microscope, energy-dispersive X-ray spectroscopy, and vibrating sample magnetometer. X-ray diffraction patterns confirmed the crysta...

Magnetocrystalline anisotropy and orbital polarization in ferromagnetic transition metals

The magnetocrystalline anisotropy energies (MAEs) of the ferromagnetic metals bcc Fe, fcc and hcp Co, and fcc Ni have been calculated by using the ab initio tight-binding method. Disentangling the strong correlation among the d orbitals with the Hamiltonian in the local spin-density approximation, we have investigated the orbital polarizations induced by the Hubbard U and Racah B. The experimen...

Pressure control of magnetic clusters in strongly inhomogeneous ferromagnetic chalcopyrites

Room-temperature ferromagnetism in Mn-doped chalcopyrites is a desire aspect when applying those materials to spin electronics. However, dominance of high Curie-temperatures due to cluster formation or inhomogeneities limited their consideration. Here we report how an external perturbation such as applied hydrostatic pressure in CdGeP₂:Mn induces a two serial magnetic transitions from ferromagn...