Organic superconductors and frustrated antiferromagnets: from quantum chemistry to quantum many-body theory to experiment. Aims. To obtain an understanding of how quantum physics and the
interactions between electrons determine the unusual properties of
organic superconductors and frustrated antiferromagnets.
Significance. The project brings together investigators who are
each world leaders in their respective areas of expertise.
Expected outcomes. Answers will be obtained to fundamenta ....Organic superconductors and frustrated antiferromagnets: from quantum chemistry to quantum many-body theory to experiment. Aims. To obtain an understanding of how quantum physics and the
interactions between electrons determine the unusual properties of
organic superconductors and frustrated antiferromagnets.
Significance. The project brings together investigators who are
each world leaders in their respective areas of expertise.
Expected outcomes. Answers will be obtained to fundamental questions about how the quantum
properties of individual molecules combine to determine the
macroscopic properties of new states of matter.Read moreRead less
Interplay of superconductivity and magnetism in layered molecular crystals. The most interesting new electronic materials discovered in the past decade are built from layers of atoms or molecules. Many exhibit a subtle competition between magnetism and superconductivity.
This project will develop new theoretical concepts and models for the electronic properties of organic molecular crystals. The theoretical predictions will be tested experimentally at the USA National High Magnetic Field Labo ....Interplay of superconductivity and magnetism in layered molecular crystals. The most interesting new electronic materials discovered in the past decade are built from layers of atoms or molecules. Many exhibit a subtle competition between magnetism and superconductivity.
This project will develop new theoretical concepts and models for the electronic properties of organic molecular crystals. The theoretical predictions will be tested experimentally at the USA National High Magnetic Field Laboratory.
The outcome will be a better understanding of a wide range of materials (including high-temperature superconductors, giant magnetoresistance and plastic electronic materials) that could be the
basis of much of the electronic technology of the twenty-first century.Read moreRead less
Modelling quantum dynamics of electronic excited states in complex molecular materials. Understanding new materials that are the basis of new sources of renewable energy sources represents a major scientific challenge. Many of these materials are composed of large organic molecules containing hundreds of atoms. Their properties and the concepts needed to understand these materials are distinctly different from semiconductors such as silicon. This research will enhance our ability to design bett ....Modelling quantum dynamics of electronic excited states in complex molecular materials. Understanding new materials that are the basis of new sources of renewable energy sources represents a major scientific challenge. Many of these materials are composed of large organic molecules containing hundreds of atoms. Their properties and the concepts needed to understand these materials are distinctly different from semiconductors such as silicon. This research will enhance our ability to design better materials and optimize the performance of organic solar cells and LEDs. Australia's capacity for research and development in this scientifically challenging and technologically important field will be enhanced by this project. Read moreRead less
Spin tunnelling transport and quantum effects in magnetic nanostructures. A new field of "spintronics" takes advantage of the spin of electrons and revolutionises electronics leading to quantum devices. By understanding the behaviour of electron spin in materials we can learn new fundamentals in solid-state physics that will lead to a new generation of electronic, optoelectronic and magneto-electronic devices. The aim of this project is to study the spin tunnelling transport and noise, and relat ....Spin tunnelling transport and quantum effects in magnetic nanostructures. A new field of "spintronics" takes advantage of the spin of electrons and revolutionises electronics leading to quantum devices. By understanding the behaviour of electron spin in materials we can learn new fundamentals in solid-state physics that will lead to a new generation of electronic, optoelectronic and magneto-electronic devices. The aim of this project is to study the spin tunnelling transport and noise, and related quantum effects in various magnetic nanostructures, such as ferromagnet/semiconductor/ferromagnet junctions, using quantum statistics approsches. The outcome of the project is of considerable relevance to the researches of nanostructure and quantum information/computation in Australia.Read moreRead less
Quantum correlations in ultra-cold Fermi gases. The field of ultra-cold Fermi gases provides a unique opportunity to develop and test theoretical methods for novel experimental environments of exceptional purity and simplicity. This improved understanding will have potential applications in many fields, ranging from the astrophysics of neutron stars to condensed matter systems such as superconductors or nanostructures. Just as importantly, the project will develop linkages with world leading the ....Quantum correlations in ultra-cold Fermi gases. The field of ultra-cold Fermi gases provides a unique opportunity to develop and test theoretical methods for novel experimental environments of exceptional purity and simplicity. This improved understanding will have potential applications in many fields, ranging from the astrophysics of neutron stars to condensed matter systems such as superconductors or nanostructures. Just as importantly, the project will develop linkages with world leading theoretical groups, which will greatly aid research student education. There are direct applications to experiments on molecule formation with ultra-cold fermions in the ARC Centre of Excellence for Quantum-Atom Optics.Read moreRead less
Hydrogen Absorption by Nanostructured Carbons. Carbon-based materials show great promise for clean energy storage through the absorption and desorption of hydrogen. The project aims to use powerful theoretical and experimental methods to resolve the controversy that surrounds reports of massive hydrogen absorption by nanostructured carbons, by understanding why particular structures should or should not absorb hydrogen atoms or molecules. We will particularly study and model intercalated graphit ....Hydrogen Absorption by Nanostructured Carbons. Carbon-based materials show great promise for clean energy storage through the absorption and desorption of hydrogen. The project aims to use powerful theoretical and experimental methods to resolve the controversy that surrounds reports of massive hydrogen absorption by nanostructured carbons, by understanding why particular structures should or should not absorb hydrogen atoms or molecules. We will particularly study and model intercalated graphite and nanotubes made in Australia. Their hydrogen capacity will be compared to the US DOE target of 6.5 weight percent for viable automotive hydrogen fuel storage. Reproducibly exceeding this target would constitute a great advance in the field.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0668510
Funder
Australian Research Council
Funding Amount
$180,240.00
Summary
Nanostructure Deposition Facility. New electronic devices and materials that exploit the properties of nanostructured surfaces are predicted to have a major impact on everyday life in areas such as information technology, biotechnology and healthcare. The Nanostructure Deposition Facility (NDF) is a unique facility, providing access to the highly specialised deposition equipment required to fabricate these important nanostructured surfaces from a variety of materials. The NFDL represents a major ....Nanostructure Deposition Facility. New electronic devices and materials that exploit the properties of nanostructured surfaces are predicted to have a major impact on everyday life in areas such as information technology, biotechnology and healthcare. The Nanostructure Deposition Facility (NDF) is a unique facility, providing access to the highly specialised deposition equipment required to fabricate these important nanostructured surfaces from a variety of materials. The NFDL represents a major new joint venture between seven Australian institutions and will provide these researchers with the essential tools for developing new electronic devices, biosensors, detectors and solar cells based on nanotechnology.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989127
Funder
Australian Research Council
Funding Amount
$400,000.00
Summary
A High-Throughput Neutron Spectrometer for The Study of Atomic and Molecular Motion at ANSTO. Neutron scattering enables new science across a broad range of disciplines, and for this reason it is undergoing major expansion in the USA, Europe, Japan and Australia. Various diffactometers and spectrometers have recently been built at ANSTO, but an instrumental option for a high-throughput cross-discipline spectroscopy is urgently needed. Fortunately, it is fairly straightforward to add this type of ....A High-Throughput Neutron Spectrometer for The Study of Atomic and Molecular Motion at ANSTO. Neutron scattering enables new science across a broad range of disciplines, and for this reason it is undergoing major expansion in the USA, Europe, Japan and Australia. Various diffactometers and spectrometers have recently been built at ANSTO, but an instrumental option for a high-throughput cross-discipline spectroscopy is urgently needed. Fortunately, it is fairly straightforward to add this type of option to an existing spectrometer that will broaden its user-base from specialised applications in physics to more general applications in physics, chemistry, materials-science and biology. This additional option provides a totally new way for Australian scientists to study atomic and molecular motions. Read moreRead less
Modelling Superconducting Quantum Devices. The capability to incorporate quantum mechanical systems into electronic circuits leads to devices with fundamentally new properties. These devices are very sensitive to their environment, so can be used as sensitive sensors. In the extreme, with many such devices connected together, it would lead to a full scale quantum computer, which has the capacity to perform tasks that are unfeasible on an ordinary computer. This proposal aims to characterise ....Modelling Superconducting Quantum Devices. The capability to incorporate quantum mechanical systems into electronic circuits leads to devices with fundamentally new properties. These devices are very sensitive to their environment, so can be used as sensitive sensors. In the extreme, with many such devices connected together, it would lead to a full scale quantum computer, which has the capacity to perform tasks that are unfeasible on an ordinary computer. This proposal aims to characterise quantum electronics from a theoretical perspective, complimentary to experimental efforts that will soon begin at the University of Queensland.Read moreRead less
The bad metallic state in quantum materials. The project seeks to elucidate how an important quantum state of matter emerges from strong interactions between electrons. Quantum materials are a diverse class of materials whose unusual properties emerge from the strong interactions between electrons. Many have metallic phases with a low electrical conductivity (bad metals). The aim is to understand and characterise this quantum state of matter and how it emerges from the constituent electrons. An ....The bad metallic state in quantum materials. The project seeks to elucidate how an important quantum state of matter emerges from strong interactions between electrons. Quantum materials are a diverse class of materials whose unusual properties emerge from the strong interactions between electrons. Many have metallic phases with a low electrical conductivity (bad metals). The aim is to understand and characterise this quantum state of matter and how it emerges from the constituent electrons. An expected outcome will be falsification of specific theoretical models (based on techniques from string theory) and development of concepts that can be used to interpret experiments, including on ultra-cold atomic gases. Projected future benefits include new insights and concepts that may aid the design and synthesis of new materials for applications based on superconductivity, thermoelectricity and magnetoresistance.Read moreRead less