Dresden 2014 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 94: Low-Dimensional Systems: Oxide Hetero-Interfaces
TT 94.9: Vortrag
Donnerstag, 3. April 2014, 17:15–17:30, HSZ 204
Enhanced ferromagnetism in BiFeO3/NgGaO3 thin film — •Chang-Yang Kuo1, Zhiwei Hu1, Jan-Chi Yang2, Ying-Hao Chu2, Stefano Agrestini1, Tunwen Pi3, Eric Pellegrin4, and Liu Hao Tjeng1 — 1Max Planck Institut CPfS, Dresden, Germany — 2National Chiao Tung University, Hsinchu, Taiwan — 3National Synchrotron Radiation Research Center (NSRRC), Hsinchu, Taiwan — 4CELLS-ALBA, Barcelona, Spain
Multiferroic material BiFeO3 has attracted a tremendous interest from the fundamental research as well as application points of view because of its high ferroelectric Curie temperature of 820 oC and high Neel temperature of 370 oC. Recently, strain engineering has emerged as a powerful means for tuning the various properties of BiFeO3 thin film remarkably, such as by modifying ferroelectric domain walls or direction in BiFeO3, enhancing ferroelectricity. Also a weak ferromagnetic component, induced by spin canting, has been observed in strained thin films. Here we report a x-ray absorption magnetic circular dichroism (XMCD) and x-ray absorption magnetic linear dichroism (XMLD) study showing a strong enhancement of the ferromagnetic component and tetragonal distortion for BiFeO3 thin film grown on NdGaO3 substrate.