Imaging and characterization of conducting ferroelectric domain walls by photoemission electron microscopy

Autor: Schaab, J., Krug, I. P., Nickel, F., Gottlob, D. M., Doğanay, H., Cano, A., Hentschel, M., Yan, Z., Bourret, E., Schneider, C. M., Ramesh, R., Meier, D.
Rok vydání: 2014
Předmět:
Zdroj: Appl. Phys. Lett. 104, 232904 (2014)
Druh dokumentu: Working Paper
DOI: 10.1063/1.4879260
Popis: High-resolution X-ray photoemission electron microscopy (X-PEEM) is a well-established method for imaging ferroelectric domain structures. Here, we expand the scope of application of X-PEEM and demonstrate its capability for imaging and investigating domain walls in ferroelectrics with high-spatial resolution. Using ErMnO3 as test system, we show that ferroelectric domain walls can be visualized based on photo-induced charging effects and local variations in their electronic conductance can be mapped by analyzing the energy distribution of photoelectrons. Our results open the door for non-destructive, contract-free, and element-specific studies of the electronic and chemical structure at domain walls in ferroelectrics.
Databáze: arXiv