Synthesis and characterization of self-assembled oxide vertical interfaces (A12#)

• Subject Area: Experimental Condensed Matter Physics
• Term: from 2017 to 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 31047526

Atomic scale fabrication of complex oxide based interfaces provides a fascinating platform with many novel physical phenomena and functional properties for the next generation of solid-state device ap-plications. However, extracting the desired properties from most horizontal interfaces is extremely challenging and is limited to a finite response. Here, we propose a new class of material system, a LaAlO3/LaBO3 nanocomposite (LABO), which has a unique structural formation in thin film regime and multifunctionalities. The evolution of a self-assembled nanopillar structure within LABO films can ena-ble the control of vertical heterointerface arrangements and therefore it can offer promising opportuni-ties to extract a vast variety of functional properties such as resistance switching, exotic magnetic coupling effects, and photoelectric properties. In this project, we will extensively investigate the growth characteristics (e.g. growth kinetics and strain distribution along the in-plane and out-of-plane direc-tions) of LABO nanocomposite films. The ultimate goal of this study will be to address a correlation between vertical interface architecture and the corresponding functional properties.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 762: Functionality of Oxide Interfaces
• Applicant Institution: Martin-Luther-Universität Halle-Wittenberg
• Project Head: Akash Bhatnagar, Ph.D.