Below you'll find a list of all posts that have been categorized as “Research Themes”
A switchable material based on electron-electron interactions. An Australian-led study has found unusual insulating behaviour in a new atomically-thin material – and the ability to switch it on and off. Materials that feature strong interactions between electrons can display unusual properties such as the ability to act as insulators even when they are expected to conduct electricity. These insulators, known …
University of Wollongong researchers achieved a significant milestone in novel soft-matter transport by demonstrating the transfer of liquid metal from an anode to a cathode without creating a short circuit, defying conventional expectations. The team led by Prof Xiaolin Wang unveils a method where liquid-metal (specifically gallium-based, room temperature liquid metal) anodes can flow towards cathodes with a small electrical …
first published at the University of Wollongong In a ground-breaking discovery, University of Wollongong (UOW) researchers, have reached a new milestone in soft-matter transport. The team, based at the UOW node of the ARC Center of Excellence in Future Low Energy Electronics Technology (FLEET), has successfully demonstrated the transfer of liquid metal from an anode to a cathode without short circuiting, defying …
Bernard Field was one of the earliest of FLEET PhD students, joining the Centre in 2018 originally as an Honours student, then a PhD student in 2019 under Agustin Schiffrin and Nikhil Medhekar. His PhD research focused on correlated electrons in a frustrated 2D lattice, within FLEET’s theme 1. We interviewed Bernard about his career path after leaving FLEET (he …
This month’s ARC infrastructure funding round saw FLEET researchers across five universities on teams awarded additional funding towards research facilities, including significant new imaging resources in South Australia and NSW. Pankaj Sharma, initially a FLEET Research Fellow at UNSW and now a Centre AI at Flinders University (South Australia), will help develop new, state-of-the-art atomic force microscopy (AFM) facilities for the …
Published first at Flinders University Latest research from Flinders University and UNSW Sydney, published in the American Chemical Society ACS Nano journal, explores switchable polarization in a new class of silicon compatible metal oxides and paves the way for the development of advanced devices including high-density data storage, ultra low energy electronics, and flexible energy harvesting and wearable devices. The …
Researchers from Monash University have unlocked fresh insights into the behaviour of quantum impurities within materials. The new, international theoretical study introduces a novel approach known as the ‘quantum virial expansion,’ offering a powerful tool to uncover the complex quantum interactions in two-dimensional semiconductors. This breakthrough holds potential to reshape our understanding of complex quantum systems and unlock exciting future …
Congratulations Prof Ferenc Krausz (MPQ) awarded the Nobel Prize in Physics today for his work in attosecond physics. Prof Krausz is the Director of the Max Planck Institute of Quantum Optics (MPQ). As a FLEET Partner Investigator, along with CI A/Prof. Agustin Schiffrin (Monash) and AI Nick Karpowicz (MPQ), Prof Krausz is involved in FLEET’s Research Theme 3, using ultrashort waveform-controlled laser …
A collaboration of FLEET researchers from the University of Wollongong and Monash University have reviewed the superconducting diode effect, one of the most fascinating phenomena recently discovered in quantum condensed-matter physics. A superconducting diode enables dissipationless supercurrent to flow in only one direction, and provides new functionalities for superconducting circuits. This non-dissipative circuit element is key to future ultra-low energy …
‘Trimming’ the edge-states of a topological insulator yields a new class of material featuring unconventional ‘two way’ edge transport in a new theoretical study from Monash University, Australia. The new material, a topological crystalline insulator (TCI) forms a promising addition to the family of topological materials and significantly broadens the scope of materials with topologically nontrivial properties. Its distinctive reliance …
A recent UNSW-led paper published in Nature Communications presents an exciting new way to listen to avalanches of atoms in crystals. The nanoscale movement of atoms when materials deform leads to sound emission. This so-called crackling noise is a scale-invariant phenomenon found in various material systems as a response to external stimuli such as force or external fields. Jerky material …
Homogenous liquid-metal nanodroplets achieved with high-temperature molten salt Australian researchers put planets in the palm of the hand Liquid metal, planet-like nanodroplets are successfully formed with a new technique developed at RMIT University, Australia. Like our own Planet Earth, the nanodroplets feature an outer ‘crust’, a liquid metal ‘mantle’, and a solid ‘core’. The solid intermetallic core is the key …
First published at RMIT Researchers have created a small device that ‘sees’ and creates memories in a similar way to humans, in a promising step towards one day having applications that can make rapid, complex decisions such as in self-driving cars. The neuromorphic invention is a single chip enabled by a sensing element, doped indium oxide, that is thousands of …
Unleashing the combined power of electrons and holes for better quantum computing Congratulations to FLEET Deputy Director Prof Alex Hamilton, who has been named an Industry Laureate Fellow by the ARC. Alex and his team at UNSW receive $3.8 million towards ground-breaking silicon-based quantum-computer technology to dramatically speed up computation, enabling Australia to maintain its global lead in quantum technologies. …
First published Australian National University A surprise observation of negative mass in exciton-polaritons has added yet another dimension of weirdness to these strange light-matter hybrid particles. Dr Matthias Wurdack, Dr Tinghe Yun and Dr Eliezer Estrecho from the Department of Quantum Sciences and Technology (QST) were experimenting with exciton polaritons when they realised that under certain conditions the dispersion became …
Congratulations to Dr Matthias Wurdack (FLEET/ANU), who has received a Schmidt Science Fellowship to develop artificial retinas. Matthias started his’ PhD at ANU in 2018, working with FLEET CI Elena Ostrovskaya to create, investigate and engineer the properties of hybrid light-matter particles in atomically-thin semiconductors with the aim to realise room temperature superfluidity based on this material platform, and understand and elevate …
A process has been developed to engineer nanoscale arrays of conducting channels for advanced scalable electronic circuitry Using ion implantation and lithography, investigators created patterns of topological surface edge states on a topological material that made the surface edges conductive while the bulk layer beneath remained an insulator Low energy ion implantation, neutron and X-ray reflectometry techniques at ANSTO supported …
Can a solid be a superfluid? Bilayer excitons form a quantum supersolid A collaboration of Australian and European physicists predict that layered electronic 2D semiconductors can host a curious quantum phase of matter called the supersolid. The supersolid is a very counterintuitive phase indeed. It is made up of particles that simultaneously form a rigid crystal and yet at the …
Electrically controlled superconductor-to-“failed insulator” transition, and giant anomalous Hall effect in the kagome metal CsV3Sb5 A new RMIT-led international collaboration published in February has uncovered, for the first time, a distinct disorder-driven bosonic superconductor-insulator transition. The discovery outlines a global picture of the giant anomalous Hall effect and reveals its correlation with the unconventional charge density wave in the AV3Sb5 …
FLEET funding is supporting the next step in possible translation of thermoelectrics research towards commercialisation in future generators, electronics, vehicles, human-wearable and environmental sensors, and smart electronics Thermoelectric materials offer potential solutions to heat-management challenges common to many electronics technologies. Thermoelectrics are solid-state semiconductors that can convert heat gradients into useful electricity (known as the Seebeck effect). They can also …
Liquid metals are enigmatic metallic solvents. A new UNSW-led study of metallic crystals growing in a liquid metal solvent finds similarities and differences between liquid-metal solvents and more-familiar crystal-growth environments (such as water or the atmosphere) in which snowflakes or crystals of dissolved substances form. We can dissolve a large amount of sugar in water at high temperatures. But as …
Ultra-thin, liquid-metal-printed oxide can improve performance of your transistor by suppressing vibrational resistance Counterintuitively, this occurs by adding extra phonons (vibrations) into the system This oxide can protect your transistor against further processing Monash University researchers have demonstrated a new, counterintuitive way to protect atomically-thin electronics – adding vibrations, to reduce vibrations. By ‘squeezing’ a thin droplet of liquid gallium, …
2D oxide-based LED encapsulation extending device lifetime FLEET translation funding is supporting the next step in a liquid-metal printing application with significant commercial promise, in a project being led by RMIT PhD candidate Patjaree Aukarasereenont. Light-emitting diodes (LEDs) play a crucial role in modern society – from mobile phones to LED billboards and home lighting, LEDs are ubiquitous. There are, …
How substrates influence magnetism in 2D materials Interaction-induced magnetism in metal-organic frameworks on substrates A new study at Monash University illustrates how substrates affect strong electronic interactions in two-dimensional metal-organic frameworks. Materials with strong electronic interactions can have applications in energy-efficient electronics. When these materials are placed on a substrate, their electronic properties are changed by charge transfer, strain, and …
Gold may hold the key to unlocking an elusive but highly desirable reaction pathway. A new Australian-led stud finds gold atoms could be key to unlocking organic reactions. Organic molecules are the building blocks for materials we use every day – from our clothes and coffee cups to the screen displays of our phones. Controlling reactions of these organic molecules …
FLEET Investigator A/Prof Bent Weber, and his team at NTU Singapore, have demonstrated unprecedented control of a one-dimensional flow of electrons in a rare quantum state that physicists have sought to understand for over half a century. The technique suggests a path to more-robust and more-accurate quantum computers. From: Nanyang Technical University, Singapore As you walk in a crowded shopping …
A UNSW/Flinders University paper published recently in Nature Reviews Materials presents an exciting overview of the emerging field of 2D ferroelectric materials with layered van-der-Waals crystal structures: a novel class of low-dimensional materials that is highly interesting for future nanoelectronics. Future applications include ultra-low energy electronics, high-performance, non-volatile data-storage, high-response optoelectronics, and flexible (energy-harvesting or wearable) electronics. Structurally different from …
Multidimensional coherent spectroscopy (MDCS) on monolayer WS2 reveals Fermi polaron interactions Phase-space filling drives new optical selection rules, where excitons compete for the same electron Identification of a novel, cooperatively-bound exciton-exciton-electron state Recent Australian-led research has provided a world’s first measurement of interactions between Fermi polarons in an atomically-thin 2D semiconductor, using ultrafast spectroscopy capable of probing complex quantum materials. …
High exciton-polariton density in an engineered quantum box Possible pathway to future, ultra energy-efficient technologies Australian researchers have engineered a quantum box for polaritons in a two-dimensional material, achieving large polariton densities and a partially ‘coherent’ quantum state. New insights coming from the novel technique could allow researchers to access striking ‘collective’ quantum phenomena in this material family, and enable …
