Multiferroic Skyrmion Materials for Next Generation Nanoelectronics. Topological structures, such as domain walls, vortices and skyrmions have recently seen considerable attention due to their potential application in nanoelectronics and new electronic device concepts. These structures are key to the design and understanding of novel functionalities in ferroic materials. The aim of the project is the investigation of fundamental properties of multiferroic skyrmion materials, i.e. their nanoscal ....Multiferroic Skyrmion Materials for Next Generation Nanoelectronics. Topological structures, such as domain walls, vortices and skyrmions have recently seen considerable attention due to their potential application in nanoelectronics and new electronic device concepts. These structures are key to the design and understanding of novel functionalities in ferroic materials. The aim of the project is the investigation of fundamental properties of multiferroic skyrmion materials, i.e. their nanoscale structure, surface topology, dynamics and their interaction with external stimuli. The control of these structures through external electric and magnetic fields, as well as strain and light will be investigated for applications in nanoelectronics and data storage.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220101185
Funder
Australian Research Council
Funding Amount
$437,400.00
Summary
Engineering ferroelectric topologies in freestanding membranes. This DECRA proposal is focused on the exploiting controlled motion, annihilation and creation of real space topological defects (polar skyrmions, vortices and merons) in free-standing ferroelectric superlattices. Topological states in ferroic materials arise from spin/dipolar textures (the spins/dipoles can be considered as quasiparticles) which condense to form topological defects. The imposition of precisely controlled elastic bou ....Engineering ferroelectric topologies in freestanding membranes. This DECRA proposal is focused on the exploiting controlled motion, annihilation and creation of real space topological defects (polar skyrmions, vortices and merons) in free-standing ferroelectric superlattices. Topological states in ferroic materials arise from spin/dipolar textures (the spins/dipoles can be considered as quasiparticles) which condense to form topological defects. The imposition of precisely controlled elastic boundary conditions through an applied bending stress, temperature profiles and electric fields to the membranes enables tailored functional responses without any interference from substrate clamping effect. This yields multifunctional materials with enhanced operational speed, sensitivity and energy-efficiencies.Read moreRead less
Spin manipulation in oxide magnetic semiconductors towards spintronics applications. The project is to develop high quality diluted magnetic semiconductors (DMS) with magnetic element dopant for practical spintronics applications. The properties for the qualified DMS include intrinsic ferromagnetism, effective spin manipulation, high spin polarisation and long distance of spin transport, which have not been well addressed so far. This project will investigate these issues using advance tools, in ....Spin manipulation in oxide magnetic semiconductors towards spintronics applications. The project is to develop high quality diluted magnetic semiconductors (DMS) with magnetic element dopant for practical spintronics applications. The properties for the qualified DMS include intrinsic ferromagnetism, effective spin manipulation, high spin polarisation and long distance of spin transport, which have not been well addressed so far. This project will investigate these issues using advance tools, including muon spin relaxation and neutron reflectometry. This project expects to establish criteria for evaluating DMS, understanding spin dynamics and mechanisms of spin manipulation and achieve qualified DMSs.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE180100109
Funder
Australian Research Council
Funding Amount
$832,648.00
Summary
Magneto-optical facility for the search of novel multifunctional materials. This project aims to establish a comprehensive photomagnetic materials characterisation facility. Novel transition metal oxide materials provide new functionalities, which by far exceed present semiconductor and IT technology. The project will enable new observations of materials’ behaviour by combining Superconducting Quantum Interference Device (SQUID) magnetometry with optical illumination, under systematically contro ....Magneto-optical facility for the search of novel multifunctional materials. This project aims to establish a comprehensive photomagnetic materials characterisation facility. Novel transition metal oxide materials provide new functionalities, which by far exceed present semiconductor and IT technology. The project will enable new observations of materials’ behaviour by combining Superconducting Quantum Interference Device (SQUID) magnetometry with optical illumination, under systematically controlled conditions. The photomagnetic measurement system will cover a diverse process parameter space for studying magnetic materials properties under light illumination, enabling measurements of the smallest magnetisation signals possible so far, for example in ultrathin films and nanomaterials.Read moreRead less
Atomically thin superconductors. This project aims to explore two-dimensional superconducting materials and elucidate the origins of their superconductivity. High temperature superconductivity in single layer iron-based superconductors offers a platform for exploring superconductors with even higher critical temperature (Tc) and has aroused great hope of understanding the underlying mechanisms for high Tc superconductivity. This project is expected to introduce physics and materials, leading to ....Atomically thin superconductors. This project aims to explore two-dimensional superconducting materials and elucidate the origins of their superconductivity. High temperature superconductivity in single layer iron-based superconductors offers a platform for exploring superconductors with even higher critical temperature (Tc) and has aroused great hope of understanding the underlying mechanisms for high Tc superconductivity. This project is expected to introduce physics and materials, leading to a better understanding of the two-dimensional superconducting phenomenon and the discovery of physical phenomena for new electronic devices.Read moreRead less
Iron-based high-temperature topological superconductors. Because of topological non-trivial nature and zero resistance, topological superconductors are very promising in the application of future electronic devices. This project aims to achieve intrinsic and robust topological superconductors at high-temperature by engineering iron-based superconductors via precisely controlling the defects, chemical doping, interface and substrates. Expected outcomes of this project will include high-temperatur ....Iron-based high-temperature topological superconductors. Because of topological non-trivial nature and zero resistance, topological superconductors are very promising in the application of future electronic devices. This project aims to achieve intrinsic and robust topological superconductors at high-temperature by engineering iron-based superconductors via precisely controlling the defects, chemical doping, interface and substrates. Expected outcomes of this project will include high-temperature iron-based topological superconductors as new material platforms for the study of exotic properties of topological superconductivity and future application in high-temperature fault-tolerant quantum computing. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190100219
Funder
Australian Research Council
Funding Amount
$359,174.00
Summary
Engineering of exotic electronic properties in atomically thin antimony. This project aims to introduce a new method of engineering electronic resistance properties of materials to reduce energy consumption in computation. Next-generation electronic devices require materials hosting current at near-zero resistance to reduce energy consumption and heat dissipation in computation. Using a novel air-stable topological material, the project will use band engineering techniques to enable the producti ....Engineering of exotic electronic properties in atomically thin antimony. This project aims to introduce a new method of engineering electronic resistance properties of materials to reduce energy consumption in computation. Next-generation electronic devices require materials hosting current at near-zero resistance to reduce energy consumption and heat dissipation in computation. Using a novel air-stable topological material, the project will use band engineering techniques to enable the production of near-zero resistance electronic material. This project will advance the knowledge required for exploring and designing materials with novel electronic properties. The advanced materials engineering techniques and exotic phase of matter identified in this project will support the development of next-generation electronic device technologies.Read moreRead less
Topotactic Control of Magnetism in Multiferroic and Skyrmion Materials. The engineering and utilisation of multiferroic and skyrmion materials is currently receiving tremendous attention as they offer a plethora of fascinating phenomena for fundamental research and future technological applications in nanoelectronics and high density data storage. One bottleneck for applications is the precise control of magnetism in single phase materials. The project is expected to deliver insight into synthes ....Topotactic Control of Magnetism in Multiferroic and Skyrmion Materials. The engineering and utilisation of multiferroic and skyrmion materials is currently receiving tremendous attention as they offer a plethora of fascinating phenomena for fundamental research and future technological applications in nanoelectronics and high density data storage. One bottleneck for applications is the precise control of magnetism in single phase materials. The project is expected to deliver insight into synthesis and properties of new topotactic magnetic materials. The utilization of topotactic transitions (reversible stoichiometric changes in materials that lead to changes in the crystal structure) can be seen as a new concept for designing controllable multiferroic and skyrmion host materials for future nanoelectronics.Read moreRead less
Magnetic skyrmion materials for next generation spintronic-based devices. Magnetic skyrmions are a novel class of materials with unique spin arrangement, making them suitable for the next generation of information processing and storage with ultrahigh density and extremely low energy consumption. This project aims to establish Australia as a world authority in the field of magnetic skyrmions and their applications, by developing ground-breaking materials and advanced technologies. The expected o ....Magnetic skyrmion materials for next generation spintronic-based devices. Magnetic skyrmions are a novel class of materials with unique spin arrangement, making them suitable for the next generation of information processing and storage with ultrahigh density and extremely low energy consumption. This project aims to establish Australia as a world authority in the field of magnetic skyrmions and their applications, by developing ground-breaking materials and advanced technologies. The expected outcomes of this project include the creation of new functional materials, leading to a better understanding of the skyrmions and producing a foundation for the future development of novel information storage devices.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120102644
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Fatigue degradation in lead-free piezoelectric ceramics: the key factor for successful industrial implementation. Many everyday devices, that is mobile phones, operate with lead-based ceramics, which can be hazardous; although there are promising lead-free materials, these show complex electric behaviour which can lead to structural damage and device failure. This project will define the degradation mechanisms so that reliable non-toxic ceramics can be designed.