Xiaodong Xu
November 30, 2023
More than 40 UW experts on Highly Cited Researchers 2023 List
The University of Washington is proud to announce that more than 40 faculty and researchers who completed their work while at UW have been named on the annual Highly Cited Researchers 2023 list from Clarivate.
June 27, 2023
Researchers make a quantum computing leap with a magnetic twist
A team led by scientists and engineers at the University of Washington has announced a significant advancement in developing fault-tolerant qubits for quantum computing. In a pair of papers published June 14 in Nature and June 22 in Science, they report that, in experiments with flakes of semiconductor materials — each only a single layer of atoms thick — they detected signatures of “fractional quantum anomalous Hall” (FQAH) states. The team’s discoveries mark a first and promising step in constructing a type of fault-tolerant qubit because FQAH states can host anyons — strange “quasiparticles” that have only a fraction of an electron’s charge. Some types of anyons can be used to make what are called “topologically protected” qubits, which are stable against any small, local disturbances.
November 15, 2022
UW celebrates researchers on Highly Cited Researchers 2022 List
The University of Washington is proud to announce that more than 44 faculty and researchers who completed their work while at UW have been named on the annual Highly Cited Researchers 2022 list from Clarivate.
April 20, 2022
Lasers trigger magnetism in atomically thin quantum materials
Researchers have discovered that light — from a laser — can trigger a form of magnetism in a normally nonmagnetic material. This magnetism centers on the behavior of electrons “spins,” which have a potential applications in quantum computing. Scientists discovered that electrons within the material became oriented in the same direction when illuminated by photons from a laser. By controlling and aligning electron spins at this level of detail and accuracy, this platform could have applications in quantum computing, quantum simulation and other fields. The experiment, led by scientists at the University of Washington, the University of Hong Kong and the Pacific Northwest National Laboratory, was published April 20 in Nature.
October 6, 2020
All together now: Experiments with twisted 2D materials catch electrons behaving collectively
In a paper published Sept. 14 in the journal Nature Physics, a team led by the University of Washington reports that carefully constructed stacks of graphene — a 2D form of carbon — can exhibit highly correlated electron properties. The team also found evidence that this type of collective behavior likely relates to the emergence of exotic magnetic states.
July 17, 2019
First-ever visualizations of electrical gating effects on electronic structure could lead to longer-lasting devices
Scientists have visualized the electronic structure in a microelectronic device for the first time, opening up opportunities for finely tuned, high-performance electronic devices. Physicists from the University of Washington and the University of Warwick developed a technique to measure the energy and momentum of electrons in operating microelectronic devices made of atomically thin — so-called 2D — materials.
February 25, 2019
It’s all in the twist: Physicists stack 2D materials at angles to trap particles on the nanoscale, creating a unique platform to study quantum optical physics
In a paper published Feb. 25 in the journal Nature, a University of Washington-led team of physicists report that it has developed a new system to trap individual excitons — bound pairs of electrons and their associated positive charges. Their system could form the basis of a novel experimental platform for monitoring excitons with precision and potentially developing new quantum technologies.
May 3, 2018
Atomically thin magnetic device could lead to new memory technologies
In a study published online May 3 in the journal Science, a University of Washington-led team announced that it has discovered a method to encode information using magnets that are just a few layers of atoms in thickness. This breakthrough may revolutionize both cloud computing technologies and consumer electronics by enabling data storage at a greater density and improved energy efficiency.
June 7, 2017
Scientists discover a 2-D magnet
A team led by the University of Washington and the Massachusetts Institute of Technology has for the first time discovered magnetism in the 2-D world of monolayers, or materials that are formed by a single atomic layer. The findings, published June 8 in the journal Nature, demonstrate that magnetic properties can exist even in the 2-D realm — opening a world of potential applications.
May 13, 2016
UW researchers unleash graphene ‘tiger’ for more efficient optoelectronics
In traditional light-harvesting methods, energy from one photon only excites one electron or none depending on the absorber’s energy gap, transferring just a small portion of light energy into electricity. The remaining energy is lost as heat. But in a paper released May 13 in Science Advances, Wu, UW associate professor Xiaodong Xu and colleagues at four other institutions describe one promising approach to coax photons into stimulating multiple electrons. Their method exploits some surprising quantum-level interactions to give one photon multiple potential electron partners.
February 12, 2016
UW scientists create ultrathin semiconductor heterostructures for new technological applications
University of Washington scientists have successfully combined two different ultrathin semiconductors — each just one layer of atoms thick and roughly 100,000 times thinner than a human hair — to make a new two-dimensional heterostructure with potential uses in clean energy and optically-active electronics.
March 23, 2015
UW scientists build a nanolaser using a single atomic sheet
University of Washington scientists have built a new nanometer-sized laser using a semiconductor that’s only three atoms thick. It could help open the door to next-generation computing that uses light, rather than electrons, to transfer information.
August 26, 2014
Scientists craft a semiconductor junction only three atoms thick
Scientists have developed what they believe is the thinnest-possible semiconductor, a new class of nanoscale materials made in sheets only three atoms thick.
March 10, 2014
Scientists build thinnest-possible LEDs to be stronger, more energy efficient
University of Washington scientists have built the thinnest-known LED that can be used as a source of light energy in electronics. The LED is based off of two-dimensional, flexible semiconductors, making it possible to stack or use in much smaller and more diverse applications than current technology allows.
