Discovering and Understanding Striking Phenomena in Dipolar Materials
Abstract
The main scientific objective of this proposal is to understand, design and control many complex (static and dynamic) properties of ferroelectric and magnetic materials (such as photo-striction effects etc.). and to discover optimized physical responses and novel phenomena (e.g. electrical skyrmions in these dipolar systems. The Pl proposes to investigate (mainly theoretically) microscopic origins responsible for several phenomenon in ferroelectric and magnetic materials such as photo-elastic and elasto-optical effects in ferroelectric epitaxial films GHz-THz electro-optic effects and dielectric tunability in ferroelectric systems. negative electrocaloric effects in relaxor ferroelectrics and antiferroelectrics. In addition the PI proposes to search for novel phenomena such as electrical skyrmions, and the common origin of spin-orbit-driven lnverse Faraday effect, transfer torques and topological Hall Effect etc. as well. He proposes to achieve these objectives via the development and use of state of the art ab initio numerical tools and analytical derivations (i) first-principles techniques; (ii) effective Hamiltonian techniques (iii) the inverse method that allows a design of improved materials; and (iv) a novel coupling energy method that recently discovered by the PI s group. Collaborations with several experimentalists are also planned during the current project.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1610227
Entities
People
- Laurent Bellaiche
Organizations
- Army Contracting Command
- United States Army
- University of Arkansas