Endimensionella multiferroiska nanostrukturer - design och tillämpningar

Tidsperiod: 2018-01-01 till 2021-12-31

Projektledare: Tapati Sarkar

Finansiär: Vetenskapsrådet

Bidragstyp: Bidrag för anställning eller stipendier

Budget: 3 600 000 SEK

Manipulating magnetism electrically is the key to future ultralow power magneto-electronics. After two decades of research in materials called ‘multiferroics’, the magneto-electric (ME) coupling needed to achieve such manipulation remains very low. It is vital to find new and innovative strategies to address this challenge. In my proposal, I will synthesize and investigate novel one-dimensional (1D) multiferroic nanostructures and their devices with a prime focus on achieving strong ME coupling via enhanced strain mediation. I will use a unique sol-gel based synthesis route for making composite materials, realize their 1D nanostructures in high-aspect ratio nanoporous templates as well as using advanced nanolithography patterning methods. Detailed optimizations, structural characterization using cutting-edge X-ray diffraction and high-resolution electron microscopy will lead to new knowledge on growth of nanostructures. Precision electrical and magnetic measurements will quantify the real ME coupling in these nanostructured composites, leading to a deeper understanding of the physical phenomena. Furthermore, I will demonstrate the functionality of these systems via novel nanodevice schemes and advanced magnetic force microscopy and magneto-optic Kerr microscopy experiments. This 4-year ambitious project builds on my strengths and resources, and has a high feasibility. The success of this project can lead to a concrete pathway towards inventing multiferroic electronics.