The Gordon and Betty Moore Foundation has awarded MIT Associate Professor of Physics Joseph G. Checkelsky a $1.7 million Emergent Phenomena in Quantum Systems (EPiQS) Initiative grant to pursue his search for new crystalline materials, known as quantum materials, capable of hosting exotic new quantum phenomena.
Quantum materials have the potential to transform current technologies by supporting new types of electronic and magnetic behavior, including dissipationless transmission of electricity and topological protection of information. Designing and synthesizing robust quantum materials is a key goal of modern-day physics, chemistry, and materials science.
However, this task does not have a straightforward recipe, particularly as many of the most exciting quantum systems are also the most complex. The starting point can be viewed as the periodic table of the elements and the geometrically allowed ways to arrange them in a solid. The path from there to a new quantum material can be circuitous, to say the least, Checkelsky says.
In our group we are trying to come up with new methods to find our way to these new quantum systems, he says. This usually requires a fresh perspective on crystalline motifs.
One example of these unique electronic structures is the kagome crystal lattice formed when atoms of iron (Fe) and tin (Sn) combine into a pattern that looks like a Japanese kagome basket, with a repeating pattern of corner-sharing triangles. Checkelsky, together with Class of 1947 Career Development Assistant Professor of Physics Riccardo Comin, graduate students Linda Ye and Min Gu Kang, and their colleagues reported in 2018 that a compound with a 3-to-2 ratio of iron to tin (Fe3Sn2) generates Dirac fermions a special kind of electronic state supporting exotic electronic behavior protected by the topology, or geometric structure, of atoms within the material.
More recently, the MIT team and colleagues elsewherereportedinNature Materials that, in a 1-to-1 iron-tin compound, the symmetry of the kagome lattice is special, simultaneously hosting both infinitely light massless particles (the Dirac fermions) and infinitely heavy particles (which manifest experimentally as flat bands in the electronic structure of the material). These unique electronic structures in iron-tin compounds could be the basis for new topological phases and spintronic devices.
For many years, the idea that a metal with atoms arranged in a kagome lattice of corner-sharing triangles could support unusual electronic states, such as combining both massless and infinitely massive electrons, remained a textbook problem something that could be solved with equations but had not been experimentally shown in a real material. It was, Checkelsky notes, thought of as a toy model, something so simplified that it might seem unrealistic that a real lattice would do that. But something about it being so simple helps you cut to the heart of the most interesting physics, he says. By doing our best to force this into an actual crystal, we managed to bridge that gap from the abstract to the real in a quantum material.
To try to find new quantum materials is a challenge, Checkelsky says. Typically for our group, we think about different kinds of lattices that might support these interesting states. The generous support of the Gordon and Betty Moore Foundation will help us pursue new methods to stabilize these materials beyond conventional approaches giving us a chance to find exciting new materials.
It is also an opportunity to train people how to find new quantum materials, he says. This is a process that takes time, but is an important skill in the field of quantum materials and one to which I hope we can contribute.
Last year, Checkelsky led an international team to discover a new type of magnetically driven electrical response in a crystal composed of cerium, aluminum, germanium, and silicon. The researchers call this responsesingular angular magnetoresistance(SAMR).
Like an old-fashioned clock that chimes at 12 oclock and at no other position of the hands, the newly discovered magnetoresistance only occurs when the direction, or vector, of the magnetic field is pointed straight in line with the high-symmetry axis in the materials crystal structure. Turn the magnetic field more than a degree away from that axis and the resistance drops precipitously. Theseresultswere reported in the journalScience.
This unique effect, which can be attributed to the ordering of the cerium atoms magnetic moments, occurs at temperatures below 5.6 kelvins (-449.6 degrees Fahrenheit). It differs strongly from the response of typical electronic materials, in which electrical resistance and voltage usually vary smoothly as an applied magnetic field is rotated across the material.
In July 2019, Checkelsky won a Presidential Early Career Award for Scientists and Engineers (PECASE), the highest honor bestowed by the U.S. government to science and engineering professionals in the early stages of their independent research careers.
TheGordon and Betty Moore Foundationfosters pathbreaking scientific discovery, environmental conservation, patient-care improvements, and preservation of the special character of the San Francisco Bay Area. Checkelskys Moore Foundation EPiQS Initiative Grant No. GBMF9070 is administered by the Materials Research Laboratory. The Materials Research Laboratory serves interdisciplinary groups of MIT faculty, staff, and students supported by industry, foundations, and government agencies to carry out fundamental engineering research on materials. Research topics include energy conversion and storage, quantum materials, spintronics, photonics, metals, integrated microsystems, materials sustainability, solid-state ionics, complex oxide electronic properties, biogels, and functional fibers.
Read this article:
- Quantum and classical computers handle time differently. What does that mean for AI? - The Next Web - September 18th, 2020
- The Fate of Schrdinger's Cat Probably Isn't in The Hands of Gravity, Experiment Finds - ScienceAlert - September 18th, 2020
- Hybrid lightmatter particles offer tantalising new way to control chemistry - Chemistry World - September 18th, 2020
- Scientists Have Shown There's No 'Butterfly Effect' in the Quantum World - VICE - August 19th, 2020
- How Physics Erases The Beginning Of The Universe - Forbes - August 19th, 2020
- Does the Butterfly Effect Exist? Maybe, But Not in the Quantum Realm - Discover Magazine - August 19th, 2020
- Dismantling disciplinary boundaries and decolonizing young India: Decoding the National Educational Policy (20 - The Times of India Blog - August 19th, 2020
- The spread of 'stranger than we can think' - Yahoo Lifestyle - August 19th, 2020
- Raytheon Technologies invests in new transformational STEM high school - PRNewswire - August 19th, 2020
- The Wheel of Time and the Storytelling Problem in the Concept of a Binary - tor.com - August 19th, 2020
- Physicists witness time crystals interacting for the first time ever - New Atlas - August 19th, 2020
- Quantum mechanics is immune to the butterfly effect - The Economist - August 17th, 2020
- Major quantum computational breakthrough is shaking up physics and maths - The Conversation UK - August 17th, 2020
- Physicists watch quantum particles tunnel through solid barriers. Here's what they found. - Space.com - August 17th, 2020
- The science of marketing: taking inspiration from quantum physics - The Drum - August 17th, 2020
- Here's why we need to build a quantum security coalition - World Economic Forum - August 17th, 2020
- The Spread of 'Stranger Than We Can Think' - SFGate - August 17th, 2020
- Nuh Gedik and Pablo Jarillo-Herrero are 2020 Moore Experimental Investigators in Quantum Materials - MIT News - August 17th, 2020
- Students in the news | Announcements - Indiana Gazette - August 17th, 2020
- Indian American Engineer Develops Parachute That Helped Curiosity Land on Mars - India West - August 17th, 2020
- How Quantum Mechanics will Change the Tech Industry - Unite.AI - July 21st, 2020
- Money & Markets: After the virus, make sure you've read the inflationary playbook - E&T Magazine - July 21st, 2020
- Bruce Lee: Inside the mind of the martial arts icon - CNN - July 21st, 2020
- Read Before Pontificating on Quantum Technology - War on the Rocks - July 13th, 2020
- The universe's clock might have bigger ticks than we imagine - Livescience.com - July 13th, 2020
- Testing Einstein's theory of relativity | OUPblog - OUPblog - July 13th, 2020
- Scientists Say This Is the Smallest Unit of Time That Could Exist - lintelligencer - July 13th, 2020
- Study: The Period of the Universe's Clock - lintelligencer - July 13th, 2020
- Book review: From Infinity to Man: The Fundamental Ideas of Kabbalah - The Jerusalem Post - July 8th, 2020
- Book review: Travels with Sushi in the Land of the Mind - The Jerusalem Post - July 8th, 2020
- WATCH: Follow along as this drag queen connects the dots between quantum physics and queer identity - Queerty - July 8th, 2020
- Raytheon Technologies to release second quarter results on July 28, 2020 - PRNewswire - July 8th, 2020
- A Brighter Tomorrow > News > USC Dornsife - USC Dornsife College of Letters, Arts and Sciences - July 8th, 2020
- The logic of the impossible: Moses our rabbi - The Jerusalem Post - July 8th, 2020
- Professor tackles one more mystery about quantum mechanics and times flow - GeekWire - July 5th, 2020
- Quantum fluctuations can jiggle objects on the human scale - MIT News - July 5th, 2020
- Want to Know the Speed of a Complex Nuclear Reaction? - Popular Mechanics - July 5th, 2020
- Try to consciously change the world it might just work - Sentinel & Enterprise - July 5th, 2020
- The Death of Fashion Shows? Not So Fast. | Tim's Take | BoF - The Business of Fashion - July 5th, 2020
- U of T and Hebrew University of Jerusalem launch research and innovation partnership - News@UofT - July 5th, 2020
- Max Planck Created Quantum Theory and Laid a New Foundation for Physics - Interesting Engineering - June 21st, 2020
- Do we need a 'Quantum Generation'? | TheHill - The Hill - June 21st, 2020
- 'Everything was centered around Sara, he was lost': Abhishek Kapoor on Sushant Singh Rajput after 'Kedarnath' - DNA India - June 21st, 2020
- RHOBH: What's with Denise Richards Husband Aaron Phypers? - Screen Rant - June 21st, 2020
- Restructuring cybersecurity with the power of quantum - TechRadar - June 21st, 2020
- In the atmosphere of Mars, a green glow offers scientists hints for future visits - NBCNews.com - June 21st, 2020
- Nano-motor of just 16 atoms runs at the boundary of quantum physics - New Atlas - June 20th, 2020
- Physics - The Period of the Universe's Clock - Physics - June 20th, 2020
- Why Gravity Is Not Like the Other Forces - Quanta Magazine - June 20th, 2020
- Toronto-based Association Quantum appoints Northern Hive PR - Business Up North - June 20th, 2020
- Physicists have proposed a new theory for Bose-Einstein condensates - Tech Explorist - June 20th, 2020
- Intricate Beauty, Quasiperiodic Structures, and the Cascade to Criticality - SciTechDaily - June 20th, 2020
- AI And The Parallel Universe - AI Daily - June 20th, 2020
- The stories a muon could tell - Symmetry magazine - June 20th, 2020
- Physicists Have Reversed Time on The Smallest Scale Using a Quantum Computer - ScienceAlert - June 13th, 2020
- Duckworth on Education: The Feynman Technique - EMSWorld - June 13th, 2020
- Sussex Uni physicist creates the fifth state of matter whilst working from home - The Tab - June 13th, 2020
- Beware of 'Theories of Everything' - Scientific American - June 13th, 2020
- Francesca Vidotto: The Quantum Properties of Space-Time - JSTOR Daily - June 1st, 2020
- What Is the Many-Worlds Theory of Quantum Mechanics? - The Wire - June 1st, 2020
- MIT Student Probing Reality Through Physics, Philosophy and Writing - SciTechDaily - June 1st, 2020
- An Indian Origin Physicist Created the Fifth State of Matter from Her Living Room - News18 - June 1st, 2020
- Science and the humanities in the time of pandemic: better together - The Irish Times - June 1st, 2020
- Quantum Physicist Invents Code to Achieve the Impossible - Interesting Engineering - May 24th, 2020
- What does the Tenet title mean? Quantum mechanics and Einsteins theory - Explica - May 24th, 2020
- Covid 19 Pandemic: Quantum Computing Technologies Market 2020, Share, Growth, Trends And Forecast To 2025 - 3rd Watch News - May 24th, 2020
- Scientists Create a Cluster of 15 Trillion Entangled Atoms for the First Time Ever - Dual Dove - May 24th, 2020
- Teaching the next generation of quantum scientists | Harvard John A. Paulson School of Engineering and Applied Sciences - Harvard School of... - May 23rd, 2020
- Nasa discovers parallel universe where time runs backwards? Know the truth - Business Standard - May 23rd, 2020
- Company Hopes to Have Carbon Nanotube COVID-19 Detector Available in June - SciTechDaily - May 23rd, 2020
- The world is not as real as we think. - Patheos - May 23rd, 2020
- Physicists Just Built The First Working Prototype Of A 'Quantum Radar' - ScienceAlert - May 19th, 2020
- Quantum Brakes to Learn About the Forces Within Molecules - SciTechDaily - May 19th, 2020
- Armin Strom Discusses Resonance With PhD Of Quantum Physics And Watch Collector In An Easy-To-Understand Way (Video) - Quill & Pad - May 19th, 2020
- Embedded in the community: Outstanding physics student is a third-generation ASU student - ASU Now - May 19th, 2020
- 50 Years of Physical Review B: Solid Hits in Condensed Matter Research - Physics - May 19th, 2020
- Exploring the quantum field, from the sun's core to the Big Bang - MIT News - May 14th, 2020
- Registration Open for Inaugural IEEE International Conference on Quantum Computing and Engineering (QCE20) - thepress.net - May 14th, 2020
- 3 Simple Reasons Why Wolfram's New 'Fundamental Theory' Is Not Yet Science - Forbes - May 14th, 2020
- The Era of Anomalies - Physics - May 14th, 2020