1800 E. Paul Dirac Dr.
Tallahassee , FL 32310-3706
- "Dr. Christianne Beekman
- Assistant Professor, Ph.D., Leiden University, The Netherlands, 2010 Dr. Beekman received her Master's Degree in Physics from Leiden University in the Netherlands in 2005 and her Doctorate Degree in Physics from the same university in 2010. Since 2010, she worked at the University of Toronto and at Oak Ridge National Laboratory as a Postdoctoral Researcher. Dr. Beekman joined the Physics Faculty of FSU in 2014.
Research InterestsComplex oxides are one of the most widely studied classes of materials often composed of many elements (including transition metals), which usually results in complex lattice structures. The interplay between many competing interactions involving spin, charge, orbital and lattice degrees of freedom results in the many remarkable physical properties of complex oxides. Due to the closeness in energy of these interactions only small perturbations are required to dramaticaly change the physical properties of these compounds. Hence, these materials provide an excellent basis for current and future (applied) research in a number of exciting areas, such as multiferroics, magneto-optics, data storage devices and solid oxide fuel cells. An example of a perturbation that is often used is epitaxial strain, i.e. intentional lattice mismatch between a thin film and the substrate that it is grown on. Recent studies have shown that the application of epitaxial strain can control and/or enhance a variety of scientifically and technologically important properties such as magnetoresistance, ferroelectricity and multiferroicity. Dr. Beekman is setting up a state-of-the-art thin film growth and characterization laboratory at the High Magnetic Field Laboratory, exploiting the many interactions in complex oxides to find new ways to control their properties using external perturbations (such as strain, electric fields and optical excitation). This will lead to new insights into a broad range of fundamental physical properties as well as advancements in developing novel heterostructure devices."
Publications and Scientific Activities
- Evidence for impact ionization in vanadium dioxide Phys. Rev. B, 94, 15, 155129 (2016)
- Ferroelectric Self-Poling, Switching, and Monoclinic Domain Configuration in BiFeO3 Thin Films Adv. Funct. Mater., 26, 28, 5166 (2016)
- Origin of thickness dependence of structural phase transition temperatures in highly strained BiFeO3 thin films APL Mater., 4, 3, 036106 (2016)
- Big Data Analytics for Scanning Transmission Electron Microscopy Ptychography Scientific Reports, 6, 26348 (2016)
- Phase Coexistence and Piezoelectric Switching in Highly Strained BiFeO3 Thin Films Florida chapter of the AVS Orlando March 2 (2016)
- Neutron studies on thin films of frustrated magnets Young Researchers Meeting ORNL August 18-19 (2016)
- Structure-Property Relationship in Doped and Strained Orthovanadates EMN meeting Orlando Dec 5-9 (2016)
- Strain Tuning Emergent Properties in Strongly Correlated Electron Systems MS&E faculty seminar FSU April 28 (2016)
- Strain Doping: Reversible Single-Axis Control of a Complex Oxide Lattice via Helium Implantation. Phys. Rev. Lett., 114, 256801 (2015)
- Understanding Strain-Induced Phase Transformations in BiFeO3 Thin Films Adv. Sci., 2, 1500041 (2015)
- Controlling the Functional Properties of Complex Oxides with Epitaxial Strain University of Florida Gainesville Feb 12 (2015)
- Phase separation in Complex Oxides: Functionality on the Mesoscale EAC meeting NHMFL Aug 4-5 (2015)