Nonlinear Optical Metrology of Electronic Interfaces for Silicon Devices. This project aims to develop a prototype electric field induced second harmonic generation metrology setup for studying thin film dielectric interfaces on silicon in partnership with Femtometrix. The quality of these silicon-dielectric interfaces, which are affected by trapped charges and defects, are critical for microelectronic and optoelectronic device manufacturing. Through several proposed methodologies to separate th ....Nonlinear Optical Metrology of Electronic Interfaces for Silicon Devices. This project aims to develop a prototype electric field induced second harmonic generation metrology setup for studying thin film dielectric interfaces on silicon in partnership with Femtometrix. The quality of these silicon-dielectric interfaces, which are affected by trapped charges and defects, are critical for microelectronic and optoelectronic device manufacturing. Through several proposed methodologies to separate the effect of interface and bulk signals, it is expected that the sensitivity of the prototype setup will exceed the previous record of 1 kV/cm. This metrology technique will be further expanded for applicability to silicon photovoltaics, specifically passivating contacts which cannot be studied via conventional techniques.Read moreRead less
Superconducting silicon nanodevices. This project will investigate superconductivity in silicon nanowire devices exhibiting both p-type and n-type conductivity. It builds on the recent demonstration at the University of Melbourne of superconductivity in nanowire devices at length-scales suitable for realisation of a broad range of superconducting device structures and utilises standard semiconductor-industry processes. This project will create a new platform for superconducting device developmen ....Superconducting silicon nanodevices. This project will investigate superconductivity in silicon nanowire devices exhibiting both p-type and n-type conductivity. It builds on the recent demonstration at the University of Melbourne of superconductivity in nanowire devices at length-scales suitable for realisation of a broad range of superconducting device structures and utilises standard semiconductor-industry processes. This project will create a new platform for superconducting device development in silicon with potential for building devices with new functionality and improved performance for applications in quantum information technologies, enhancing Australia’s global reputation in quantum information science and assisting emerging industries in this high-valued added area.Read moreRead less
Low-cost, Lightweight and Liquid Helium-free Superconducting MRI Magnet. This project aims to develop a liquid-helium-free superconducting technology to address the need for more affordable MRI magnets that currently rely on expensive, limited supplies of liquid helium. This project expects to generate a world-first, much needed MRI systems to be operated in persistent mode without a power supply, to obtain high-resolution images and low-cost operation. The expected outcomes include a novel, lig ....Low-cost, Lightweight and Liquid Helium-free Superconducting MRI Magnet. This project aims to develop a liquid-helium-free superconducting technology to address the need for more affordable MRI magnets that currently rely on expensive, limited supplies of liquid helium. This project expects to generate a world-first, much needed MRI systems to be operated in persistent mode without a power supply, to obtain high-resolution images and low-cost operation. The expected outcomes include a novel, lightweight, easy-to-operate magnesium diboride superconducting MRI magnet prototype under persistent mode operation. This should provide significant benefits, including reducing the cost associated with conventional liquid helium-dependent technologies and ensuring Australia at the forefront of MRI development worldwide.Read moreRead less
Engineering one dimensional quantum phases with nanostructured Josephson junction arrays. This project aims to engineer novel quantum electronic devices based on strongly-coupled, one-dimensional superconducting microcircuits. These will be realised using chains of nanoscale superconducting islands fabricated on a chip. The project expects to achieve a special type of insulating state, where individual charges can be transported one by one. This would be significant as a primary standard that pr ....Engineering one dimensional quantum phases with nanostructured Josephson junction arrays. This project aims to engineer novel quantum electronic devices based on strongly-coupled, one-dimensional superconducting microcircuits. These will be realised using chains of nanoscale superconducting islands fabricated on a chip. The project expects to achieve a special type of insulating state, where individual charges can be transported one by one. This would be significant as a primary standard that precisely links time (or frequency) to charge. The project also aims to create a current mirror device, in which a supercurrent sent down one chain induces a reflected supercurrent in the other, forming the basis of a new superconducting quantum bit. Other devices will be used to study a simplified model related to high temperature superconductors.Read moreRead less
Hot Topic: Quantum Design of Phononic Heat Filters. Heat management is critical to many technologies for sustainable energy, electronics, protective equipment and energy-efficient buildings. The phonon is the quantum particle representing a travelling vibration and is responsible for the transmission of heat in solids. This project will study the new mechanisms for phonon transport in solids modified with embedded nanoparticles, which operate as phononic filters. Neutron spectroscopy provides a ....Hot Topic: Quantum Design of Phononic Heat Filters. Heat management is critical to many technologies for sustainable energy, electronics, protective equipment and energy-efficient buildings. The phonon is the quantum particle representing a travelling vibration and is responsible for the transmission of heat in solids. This project will study the new mechanisms for phonon transport in solids modified with embedded nanoparticles, which operate as phononic filters. Neutron spectroscopy provides a tool to measure the phonon density of states which is critical for developing a mathematical model of thermal boundary resistance. This is expected to identify mechanisms for ultra-low thermal conductivity leading to potential applications in thermoelectric generators and heat-resistant materials.Read moreRead less
Synthesis of enriched silicon for long-lived donor quantum states. We have discovered a method to make silicon highly enriched in the desirable spin-zero isotope using readily available ion implantation tools. This “semiconductor vacuum” is essential for building future quantum computer devices using the quantum spin of millions of implanted atoms with revolutionary capabilities. We have demonstrated long-lived implanted donor atom quantum states in prototype material, made possible by the deple ....Synthesis of enriched silicon for long-lived donor quantum states. We have discovered a method to make silicon highly enriched in the desirable spin-zero isotope using readily available ion implantation tools. This “semiconductor vacuum” is essential for building future quantum computer devices using the quantum spin of millions of implanted atoms with revolutionary capabilities. We have demonstrated long-lived implanted donor atom quantum states in prototype material, made possible by the depletion of background spins in natural silicon and now aim to push the enrichment to greater extremes. We will integrate the extreme material into functional devices that use electrically detected electron spin resonance to probe exceptionally durable quantum states and open a near-term pathway to large-scale devices.Read moreRead less
Nanostructure engineered low activation superconductors for fusion energy. This project aims to develop a novel, low activation and liquid helium-free superconducting solution with superior electromagnetic, mechanical and thermal properties for use in fusion reactors. Superconducting magnets and their associated cryogenic cooling systems represent a key determinant of thermal efficiency and the construction/operating costs of fusion reactors. The project expects to overcome these barriers so tha ....Nanostructure engineered low activation superconductors for fusion energy. This project aims to develop a novel, low activation and liquid helium-free superconducting solution with superior electromagnetic, mechanical and thermal properties for use in fusion reactors. Superconducting magnets and their associated cryogenic cooling systems represent a key determinant of thermal efficiency and the construction/operating costs of fusion reactors. The project expects to overcome these barriers so that widespread uptake of these reactors becomes viable. Outcomes from the project will include a fundamental understanding of pure and doping-induced isotopic magnesium diboride superconductors and their behaviour under high neutron flux and harsh plasma atmosphere, which are specifically designed for application in next-generation, low-cost fusion reactors.Read moreRead less
Multidimensional Coherent Spectroscopy of Strongly Correlated Materials. By applying new types of spectroscopy, this project aims to address the gaps in our understanding of how remarkable macroscopic properties, such as superconductivity, emerge from the fundamental interactions in strongly correlated electron materials. This project will combine theory and experiment to develop a pathway by which multidimensional coherent spectroscopy can disentangle the competing interactions that make these ....Multidimensional Coherent Spectroscopy of Strongly Correlated Materials. By applying new types of spectroscopy, this project aims to address the gaps in our understanding of how remarkable macroscopic properties, such as superconductivity, emerge from the fundamental interactions in strongly correlated electron materials. This project will combine theory and experiment to develop a pathway by which multidimensional coherent spectroscopy can disentangle the competing interactions that make these materials so complex, but also potentially useful. By delivering an understanding of the interplay between different microscopic processes, the project will make it more feasible to control them. This will allow for the design new controllable quantum materials that can be the basis for future technologies.Read moreRead less
Imaging Symmetry – A New Mechanism for Revealing the Structure of Matter. This project aims to develop a revolutionary method for imaging atomic structures. In this method, the image contrast derives from the symmetry of the structure, measured at the picometre scale, using tiny electron probes. This new conceptual approach is expected to overcome some of the key limitations of existing electron microscopy methods by providing increased sensitivity and reduced radiation damage, thereby enabling ....Imaging Symmetry – A New Mechanism for Revealing the Structure of Matter. This project aims to develop a revolutionary method for imaging atomic structures. In this method, the image contrast derives from the symmetry of the structure, measured at the picometre scale, using tiny electron probes. This new conceptual approach is expected to overcome some of the key limitations of existing electron microscopy methods by providing increased sensitivity and reduced radiation damage, thereby enabling complex structures in technologically important materials to be determined. This should provide new ways to understand the properties of these materials advanced materials and engineer them for applications in the energy, transport, health, communications and other sectors of society. Read moreRead less