PROGRAMME MESA+ COLLOQUIUM
Date: Monday, 7 June 2021
Time: 17:00 - 18:00 hrs. (note: different starting time this time!)
Location: online
Hosted by the Piezo electric materials groups
MESA+ COLLOQUIUM BY PROF.DR. BEATRIZ NOHEDA (UNIVERSITY OF GRONINGEN), GRONINGEN, THE NETHERLANDS, ENTITLED: THE MATTER OF FUTURE COMPUTERS: COMPLEX OXIDES FOR SYNAPTIC DEVICES
Abstract
Although neuromorphic computing concepts have been put forward half a century ago, the urgency for low power solutions that can handle big data efficiently, is a recent development. Also recent is the realization that transistors and standard circuit elements will not allow sufficient progress in this direction. It is now clear that the quest for low-power cognitive computing needs a holistic approach that starts with the use of materials with intrinsic plasticity. Here I will highlight how the latest progress in materials science can offer promising alternatives for future cognitive devices. The focus will be on complex oxides, as they often display multiple nearly-degenerate states among which the system can transition with very small changes of external stimuli, therefore, offering excellent basis to achieve large responses with low driving voltages. In addition, their sensitivity to composition or strain, allows engineering of a very diverse set of functionalities by purposeful synthesis of thin layers or heterostructures, which nowadays is possible down to the atomic control. Emphasis will be made on new materials developments, such as the novel nanoscale ferroelectrics based on HfO2, as well as on materials that self-assemble in organized networks forming nanoscale conduction paths, such as thin films with ferroelastic, nanometer-size domains or polymer-assisted templating of complex oxides.
Please click here for the biography of Prof.dr. Beatriz Noheda.