Multiferroic bismuth ferrite: Perturbed angular correlation studies on its ferroic α−β phase transition

One-dimensional multiferroic bismuth ferrite fibers obtained by electrospinning techniques.

We report the fabrication of novel multiferroic nanostructured bismuth ferrite (BiFeO(3)) fibers using the sol-gel based electrospinning technique. Phase pure BiFeO(3) fibers were prepared by thermally annealing the electrospun BiFeO(3)/polyvinylpyrrolidone composite fibers in air for 1 h at 600 °C. The x-ray diffraction pattern of the fibers (BiFeO(3)) obtained showed that their crystalline st...

Structural phase transition and Tc distribution in Hf-doped LaMnO3 investigated using perturbed-angular-correlation spectroscopy.

Using perturbed-angular-correlation ~PAC! spectroscopy, via the Hf→Ta probe, we have measured Mn-site electric-field gradients ~EFG’s! at Ta nuclei in ceramic samples of LaMnO3. Two crystallographic phases coexist over a temperature interval of '16 K near the orthorhombic-to-rhombohedral transition at '724 K, which shows a thermal hysteresis of '1.760.2 K. Concurrently, in the two phases, we de...

Phase Transitions in Oxides Studied by Perturbed Angular Correlation Spectroscopy

Radioactive atoms located on cation sites in oxide matrices can be used to monitor phase transitions by measuring the electric or magnetic hyperfine interactions by means of Perturbed Angular Correlations spectroscopy. The article illustrates three types of phase transitions studied with 'in tracers and their daughter nuclei m C d , namely magnetic, structural and REDOX phase transitions in bin...

Perturbed Angular Correlation Studies in SrTi03 Single Crystals

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Perturbed Angular Correlation Studies in the Ferromagnetic Rare