Designing Electronic Phases at Oxide Interfaces for Electronic, Spintronic and Energy Applications

Date: 

Friday, October 9, 2015 - 11:00am

Location: 

ESB 1001

Speaker: 

Rossitza Pentcheva, University of Duisberg-Essen, Germany

Abstract

Oxide interfaces exhibit a broad spectrum of functional properties that are not available in the respective bulk compounds and open possibilities for applications in electronics, spintronics and energy conversion. Based on the insight from first principles calculations including on-site Hubbard term I will address the formation of unanticipated charge, spin and orbital reconstructions in honeycomb lattices of 3d perovskite oxides, leading to a rich set of Mott and even topological phases [1-3]. Furthermore, I will discuss the origin of remanent above room-temperature magnetization at the interface of antiferromagnetic CoO and Co3O4 [4]. Last but not least, I will discuss strategies for the optimization of oxide materials for thermoelectrics as well as anodes for the photoelectrocatalytic water splitting.   

Research in collaboration with D. Doennig, M. Gruner, H. Hajiyani and W.E. Pickett; supported by the DFG, SFB/TR80 and SPP1613.

Bio

Rossitza Pentcheva studied physics at the Universities of Sofia and Cologne, completing her thesis at Research Centre Jülich. She earned her PhD at the Freie Universität Berlin and the Fritz Haber Institute of the Max Planck Society. Professor Pentcheva completed her postdoctoral studeis in materials science at the Ludwig Maximilian University of Munich.

Hosted by: Susanne StemmerPart of the Fall 2015 Joint Colloquium of the Materials Department and Materials Research Laboratory. Join us for pizza after the lecture. Download the event flyer.