Single-domain multiferroic BiFeO3 films

Single-domain multiferroic BiFeO3 films

The strong coupling between antiferromagnetism and ferroelectricity at room temperature found in BiFeO3 generates high expectations for the design and development of technological devices with novel functionalities. However, the multi-domain nature of the material tends to nullify the properties of interest and complicates the thorough understanding of the mechanisms that are responsible for th...

Nanoscale Domain Control in Multiferroic BiFeO3 Thin Films

With an ever-expanding demand for data storage, transducers, and microelectromechanical (MEMS) systems applications, materials with superior ferroelectric and piezoelectric responses are of great interest. The lead zirconate titanate (PZT) family of materials has served as the cornerstone for such applications up until now. A critical drawback of this material, however, is the presence of lead ...

Optical Properties of Multiferroic BiFeO3 Films

Lightwave communication systems are predominantly used for handling high-speed data traffic. Long-distance ground-based systems particularly depend on optical fibers. Several business and research facilities employ direct fiber connections, and fiber to the home (FTTH) technology is foreseeable in the near future. These developments are driven particulary by the high demand for bandwidth necess...

DEPOSITION AND CHARACTERIZATION OF MULTIFERROIC BiFeO3 THIN FILMS

Title of Dissertation: DEPOSITION AND CHARACTERIZATION OF MULTIFERROIC BiFeO3 THIN FILMS Junling Wang, Doctor of Philosophy, 2005 Dissertation Directed By: Professor Manfred Wuttig, Department of Materials Science and Engineering Multiferroics, defined as materials with coexistence of at least two of the electric, elastic, and magnetic orders, have attracted enormous research activities recentl...

Defect-mediated ferroelectric domain depinning of polycrystalline BiFeO3 multiferroic thin films