Perturbed angular correlations investigations on YMnO3 multiferroic manganite

Structural Phase Transitions in BaTi03 Studied via Perturbed Angular Correlations

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...

Structural coherence and ferroelectric order in nanosized multiferroic YMnO3

S. Tripathi,1 V. Petkov,1,* S. M. Selbach,2 K. Bergum,2 M.-A. Einarsrud,2 T. Grande,2 and Y. Ren3 1Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48859, USA 2Department of Materials Science and Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway 3Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA (Receive...

Direct Observation of Multiferroic Vortex Domains in YMnO3

Topological vortices with swirling ferroelectric, magnetic and structural anti-phase relationship in hexagonal RMnO3 (R = Ho to Lu, Y, and Sc) have attracted much attention because of their intriguing behaviors. Herein, we report the structure of multiferroic vortex domains in YMnO3 at atomic scale using state-of-the-art aberration-corrected scanning transmission electron microscopy (STEM). Two...

Oxidation of Hafnium and Diffusion of Hafnium Atoms in Hexagonal Close-Packed Hafnium; Microscopic Investigations by Perturbed Angular Correlations

Time-differential perturbed angular correlation (TDPAC) studies in hafnium metal (∼ 5%Zr) have been carried out at different temperatures. It is found that hafnium metal on heating at 873 K continuously for two days in air, transforms partially and abruptly to HfO2 while no component of oxide has been observed for heating up to 773 K and during initial heating at 873 K for 1 day. This result is...

"Oxygen-vacancy effect on structural, magnetic, and ferroelectric properties in multiferroic YMnO3 single crystals"