Multiferroics of hybrids and oxides
The search for multiferroic materials with coupled ferroelectric and magnetic orders led recently to discovery of spectacular magnetoelectric effects, which can be used in novel electronic devices. Groups of the Advanced Materials program have taken a leading role in multiferroics research and made a number of seminal contributions to the field. Not least the rationalization of ferroelectricity of spiral magnets and clarification of the microscopic mechanisms for static and dynamic magnetoelectric effects. These advances in theory were matched by experimental studies of important multiferroic materials, search for new compounds with coupled electric and magnetic dipoles and for ways to enhance their performance. Experimental and theoretical work done within the Advanced Materials program revealed an incredibly rich physics of topological defects in bulk and thin film multiferroics, e.g., an enhanced conductance of ferroelectric domain walls, discrete vortices made of clamped ferroelectric and magnetic domains, and the strain-induced novel structural and magnetic phase at ferroelastic domain walls. These results offer a new paradigm for the control of electronic functionality at the nanoscale.
|Laatst gewijzigd:||31 januari 2017 22:50|