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UNSW outreach videos from the lab

It’s certainly been a challenge, maintaining science-outreach efforts in 2020… But a group of a FLEET researchers found a way to showcase their labs at UNSW recently, spotlighting the facilities for prospective students at the university’s virtual open day. Introduction to the undergrad physics labs (Krittika Kumar, Matt Rendell, Yoni Ashlea-Alava and Karina Hudson) Measuring superconducting quantum interference: a third-year …

Sumeet Walia: Eureka Prize finalist

Congratulations to Sumeet Walia, who was named this morning as a finalist in the prestigious Australia Museum Eureka Prizes – the country’s top science awards. An Associate Professor in the School of Engineering, RMIT University, Sumeet is short-listed for the Eureka Prize for an Emerging Leader in Science. “My research is dedicated towards discovering new phenomena in nanomaterials and creating …

FLEET physics a finalist in 2020 Eureka prizes

FLEET physicists from Monash University and the University of Queensland are finalists, named today, in the Australian Museum Eureka Prizes – the nation’s top science awards. The Australian Quantum Vortex team provided the first proof of a 70-year-old theory of turbulence. Turbulence is everywhere, but remains one of physics’ great unsolved problems. Turbulence in two-dimensional flow, and the giant vortices …

To kill a quasiparticle: a quantum whodunit

What causes quasiparticle death? In large systems of interacting particles in quantum mechanics, an intriguing phenomenon often emerges: groups of particles begin to behave like single particles. Physicists refer to such groups of particles as quasiparticles. Understanding the properties of quasiparticles may be key to comprehending, and eventually controlling, technologically important quantum effects like superconductivity and superfluidity. Unfortunately, quasiparticles are …

What happens between the sheets? ‘Floating’ graphene on a bed of calcium atoms

Adding calcium to graphene creates an extremely-promising superconductor, but where does the calcium go? Adding calcium to a composite graphene-substrate structure creates a high transition-temperature (Tc) superconductor. In a new study, an Australian-led team has for the first time confirmed what actually happens to those calcium atoms: surprising everyone, the calcium goes underneath both the upper graphene sheet and a …

Reviewing the Quantum Anomalous Hall Effect (QAHE)

Quantum anomalous Hall effect (QAHE)-materials reviewed Magnetic topological insulators and spin-gapless semiconductors A collaboration across three FLEET nodes has reviewed the fundamental theories underpinning the quantum anomalous Hall effect (QAHE). QAHE is one of the most fascinating and important recent discoveries in condensed-matter physics. It is key to the function of emerging ‘quantum’ materials, which offer potential for ultra-low energy …

Growing metallic crystals in a liquid-metal solvent

Imagine an alien world with oceans of liquid metal. If such a world exists, metallic elements are likely the sources of the dissolved materials and particles in these oceans. Everything would be made of metallic elements, even lifeforms. It may sound like a concept pulled straight out of a science fiction movie, but some basic elements of this fantastical vision …

IOP Roadmap: quantum materials

Quantum materials are exploding in condensed-matter, cold-atom physics, materials science. #explainer The new IOP quantum materials roadmap explores current research, future challenges, technical applications, underlying physics in topological insulators, multiferroics, twisted-‘magic angle’ moiré graphene, superconductors (copper-based and TMD-based), topological semimetals, Majorana states + non-equilibrium phenomena (phew!) Read the roadmap ‘Emergent’ phenomena are key to FLEET’s search for ultra-low energy electronics …

Julie Karel describing search for future memory, for Materials Australia

An online audience of almost 90 tuned in this week to hear FLEET CI Dr Julie Karel describing her search for non-volatile memory technologies and associated materials challenges. The talk was co-hosted by FLEET and Materials Australia. Catch up on the talk here Julie described her own work at Monash Department of Material Science and Engineering developing materials that can …

Vortex top-hats emerge in superfluids

An Australian-led study has provided new insight into the behaviour of rotating superfluids. A defining feature of superfluids is that they exhibit quantised vortices – they can only rotate with one, or two, or another integer amount of rotation. Despite this key difference from classical fluids, where vortices can spin with any strength, many features of the collective dynamics of …

Jan Seidel co-edits first book on emerging domain wall nanoelectronics

FLEET CI Prof Jan Seidel (UNSW) is co-editor on a new book titled “Domain Walls – From Fundamental Properties to Nanotechnology Concepts” published by Oxford University Press. It is the first to cover the emerging field of ferroelectric domain walls in depth, from underlying nanoscale material properties to prototype and emerging nanoelectronics technology and future research concepts in the area. …

Unexpectedly-fast conduction electrons in Na3Bi

—Written by Dr Iolanda di Bernardo, FLEET/Monash An Australian-led study uses a scanning-tunnelling microscope ‘trick’ to map electronic structure in Na3Bi, seeking an answer to that material’s extremely high electron mobility. In studying the topological Dirac semimetal, the team found that exchange and correlation effects are crucial to electron speed, and therefore mobility, and thus to the use of this …

Bingeing Netflix under lockdown? Here’s why streaming comes at a cost to the environment

Coronavirus lockdowns have led to a massive reduction in global emissions, but there’s one area where energy usage is up – way up – during the pandemic: internet traffic. Data-intensive video streaming, gaming and livestreaming for business, university and school classes, is chewing up energy. Read more: Netflix has capitalized on social isolation, but will its success continue in a post-coronavirus world? Estimates can be notoriously difficult and depend on the electricity …

New organic material unlocks faster and more flexible electronic devices at ANU

Mobile phones and other electronic devices made from an organic material that is thin, bendable and more powerful are now a step closer thanks to new research led by scientists at The Australian University (ANU). Lead researchers Dr Ankur Sharma and Associate Professor Larry Lu say it would help create the next generation of ultra-fast electronic chips, which promise to be much faster than current electronic chips we use. “Conventional devices run …

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Congratulations Meera Parish: ARC Future Fellowship

Congratulations to FLEET CI A/Prof Meera Parish who received an ARC Future Fellowship in this week’s announcement. “The revolution in electronics and the Information Age were enabled by powerful theories based on the concept of the quasiparticle, an object composed of many particles such as electrons,” writes A/Prof Parish. The new ARC Fellowship will support Meera’s work to unravel the …

Using protons to tune interlayer forces in van-der-Waals materials

Interlayer coupling in vdW material Fe3GeTe2 successfully increased by insertion of protons A Chinese-Australian collaboration has demonstrated for the first time that interlayer coupling in a van der Waals (vdW) material can be largely modulated by a protonic gate, which inject protons to devices from an ionic solid. The discovery opens the way to exciting new uses of vdW materials, …

New FLEET funding supporting women in STEM

As COVID bites into academic budgets, it is getting even harder for PhD students to secure funding. Research indicates COVID is disproportionately hurting women in science, who are already under-represented in STEM, particularly in physics. In response, FLEET has introduced a new, third scholarship option for outstanding candidates who identify as women: New PhD partial-stipend scholarship: Maximum $15,000/year partial stipend …

Matt Gebert: outreach champion

Congratulations to FLEET PhD student Matt Gebert, recognised for his dedication to science-outreach by the Monash Faculty of Science. Matt’s contributions to science outreach include running lab tours with Monash Tech School, demonstrating levitating superconductors and speaking at Monash University open day, teaching regional students via the Emerging Science Victoria program, coordinating PhD day, and in-class demos and talks, including …

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Research theme II virtual workshop

A two-day live-streamed workshop brought 30 researchers from across FLEET together last week, organised by ANU Research Fellows Maciej Pieczarka and Eliezer Estrecho. FLEET’s second research theme uses a quantum state known as a superfluid to achieve electrical current flow with minimal wasted dissipation of energy. In a superfluid, scattering is prohibited by quantum statistics, and all particles flow with …

Through the nanoscale looking glass:  FLEET researchers determine boson peak frequency in ultra-thin alumina

There’s more to glass than meets the eye. Glasses, which are disordered materials with no long-range chemical order, have some mysterious properties that have remained enigmatic for several decades. Amongst these are the anomalous vibrational states that contribute to the heat capacity at low temperature. Early researchers established that these states obey Bose-Einstein statistics, and the name stuck, so today …

Behind the scenes at Monash

Shooting for an all-online open day featuring FLEET’s material labs at Monash University’s New Horizons building, FLEET Research Fellow Dr Semonti Bhattacharyya with School of Physics and Astronomy Steve Morton. See the resulting video on Monash Physics youtube.

International collaboration unlocks vdW heterostructure

2D vdW TMD heterostructures studied Study correlates interface physics to device performance An India-Australian theoretical and experimental study for high-performance optoelectronics has been published in Nano Letters. The Monash University collaboration with the Indian Institute of Technology Bombay (IITB) designed and fabricated a heterostructure comprising two layered transition metal dichalcogenides (WSe2 and ReS2). Integrating new physics in vdW heterostructures Van-der-Waals …

ANSTO Scholarship for FLEET PhD Qile Li

Congratulations to FLEET PhD student Qile Li, whose excellent work in probing electronic structures of novel materials has been recognised by an award and scholarship from the Australian Institute of Nuclear Science and Engineering (AINSE). At ANSTO’s Australian Synchrotron, Qile Li uses Angle-Resolved Photo-Electron Spectroscopy (ARPES) to measure electronic properties of intrinsic magnetic topological insulators. Intrinsic magnetic topological insulators are …

Skilling researchers up for a post-pandemic career

Around 35 PhDs and other Early Career Researchers from FLEET and partner organisation the MacDiarmid Institute took a chance last week to learn how to take control of their future in these uncertain times, and to gain a better understanding of the job market (both in academia and industry) with a targeted, one-hour workshop from “the thesis whisperer”. A/Prof Inger …

Liquid metal synthesis for better piezoelectrics: atomically-thin tin-monosulfide

Record output power obtained from piezoelectric, atomically-thin material Remarkable synthesis advance for materials such as tin-monosulfide (group IV monochalcogenides), which are predicted to exhibit strong piezoelectricity Potential materials for future wearable electronics and other motion-powered, energy-harvesting devices RMIT-UNSW collaboration applies liquid-metal synthesis to piezoelectrics, advancing future flexible, wearable electronics, and biosensors drawing their power from the body’s movements. Materials such …

Spin-gapless semiconductors review: more candidates for next-generation low energy and high efficient spintronics

Spin-gapless semiconductors (SGSs) are a new class of zero-gap materials, with fully spin polarized electrons and holes. SGSs bridge the zero-gap materials and half-metals Material’s fascinating spin and charge states hold great potential for future spintronic technology. A University of Wollongong team has published an extensive review of spin-gapless semiconductors (SGSs) . Spin gapless semiconductors (SGSs) are a new class …

FLEETs Kourosh Kalantar-zadeh awarded prestigious prize

FLEET CI Professor Kourosh Kalantar-zadeh (UNSW Sydney) has been awarded the prestigious 2020 Robert Boyle Prize for Analytical Science by The Royal Society of Chemistry. Prof Kalantar-zadeh is recognised for his significant influence across multiple fields of engineering. Contributions to society coming from his research across multiple disciplines include new innovative pollution sensors, transistors, medical devices and optical systems. Many …

Applying ‘magic angle’ twistronics to manipulate the flow of light

‘Twisted’ layers of 2D materials produce photonic topological transition at ‘magic’ rotation angles Principles of Moire-pattern bilayer graphene applied to 2D material photonics for first time Monash researchers are part of an international collaboration applying ‘twistronics’ concepts (the science of layering and twisting 2D materials to control their electrical properties) to manipulate the flow of light in extreme ways. The …

Cathy Foley recognised in Queen’s Birthday Honours

CSIRO Chief Scientist Dr Cathy Foley was recognised in this year’s Queen’s Birthday Honours for her distinguished service to research science, to the advancement of women in physics and to professional scientific organisations. Prior to becoming Chief Scientist, as Deputy and Science Director of CSIRO Manufacturing, Dr Foley worked to engage Australian manufacturers and researchers to translate research into economic …

Liquid metals break down organic fuels into ultra-thin graphitic sheets

For the first time, FLEET researchers at UNSW, Sydney show the synthesis of ultra-thin graphitic materials at room temperature using organic fuels (which can be as simple as basic alcohols such as ethanol). Graphitic materials, such as graphene, are ultra-thin sheets of carbon compounds that are sought after materials with great promises for battery storage, solar cells, touch panels and …