2014 We have carried out the first observation of spiral spin or chirality domains, in a single crystal of terbium in its helimagnetic phase, by polarized neutron diffraction topography. The different domain structures observed are a function of the thermal history of the sample. When the sample is warmed from the ferromagnetic phase one observes stripe domains with long axis perpendicular to t...

The crystal structure of terbium(III) scandate(III), with ideal formula TbScO(3), has been reported previously on the basis of powder diffraction data [Liferovich & Mitchell (2004 ▶). J. Solid State Chem.177, 2188-2197]. The current data were obtained from single crystals grown by the Czochralski method and show an improvement in the precision of the geometric parameters. Moreover, inductively ...

OBJECTIVES Cefixime (Cfx), is a semi-synthetic third-generation oral cephalosporin antibiotic that is prescribed for the treatment of susceptible infections. There are some procedures for the determination of Cfx in pharmaceutical formulations and biological samples. Herein a spectrofluorimetric method was proposed for Cfx determination based on the fluorescence quenching of terbium-danofloxaci...

The optimal temperature regime for the synthesis of glass ceramics with YNbO 4 : Tb 3+ crystalline inclusions has been established. Glass were synthesized on basis a sodium borate matrix from oxide precursors. It established that at 950 o C is optimal, since this only one phase formed in and its content maximum. spectra obtained by method local cathodoluminescence, composition was studied X-ray...

Abstract Motivated by recent experimental polarized neutron results, we present a numerical micromagnetic study of the interfacial (intergrain) Dzyaloshinskii-Moriya interaction (DMI) in nanocrystalline terbium. We demonstrate that DMI-induced spin misalignment between adjacent nanograins is reason for formation asymmetric positive-negative pattern seen scattering experiments. Analysis remagnet...

This paper reports on the magneto-optical properties of an electron beam evaporated EuS thin-film characterized at room temperature. The refractive index was measured using ellipsometry in visible part spectrum. dispersion curve Verdet constant wavelength range between 600 and 800 nm. We fitted analytical expression for 663–785 In addition, we find that is one order magnitude higher than common...