News: AEP

stem image of tooth

Smile: Atomic imaging finds root of tooth decay

By: David Nutt

A collaboration between researchers from Cornell, Northwestern University and University of Virgina combined complementary imaging techniques to explore the atomic structure of human enamel, exposing tiny chemical flaws in the fundamental building blocks of our teeth. The findings could help scientists prevent or possibly reverse tooth decay. Read the full Chronicle Article here. Read more

muller graphic of empad

Hardware to count every electron and software to make sure every electron counts

Regarding his team's new mixed-state electron ptychography method, Professor David Muller, Samuel B. Eckert Professor of Engineering, says it entails: “hardware to count every electron and software to make sure every electron counts.” Mixed-state electron ptychography uses complex algorithms to achieve faster, less destructive, more efficient imaging with picometer precision. Learn more: "When imaging atoms, blurrier is better". Read more

Professor Jie Shan and Associate Professor Kin Fai Mak

Researchers control elusive spin fluctuations in 2D magnets

Professor Jie Shan and Associate Professor Kin Fai Mak co-author recent paper on a new real-time imaging technique that is fast and sensitive enough to observe elusive critical fluctuations in two-dimensional magnets. This technique allows researchers to control the fluctuations and switch magnetism via a “passive” mechanism that could eventually lead to more energy-efficient magnetic storage devices. The team’s paper, “Imaging and Control of Critical Fluctuations in Two-Dimensional Magnets,” published June 8 in Nature Materials. Learn more in the Cornell Chronicle article here. Read more

image from Fuchs

Acoustics put a fresh spin on electron transitions

By: David Nutt

Fuchs’s group demonstrates spin resonance can be driven solely by acoustics. eliminates need for the magnetic antenna. The team’s paper, “Acoustically Driving the Single Quantum Spin Transition of Diamond Nitrogen-Vacancy Centers,” published May 27 in Physical Review Applied. Read more

etch a sketch

Rewritable magnetic patterning: think tiny Etch A Sketch

By: Syl Kacapyr

AEP Associate Professor Greg Fuchs among the multifaceted team that recently published “Local Photothermal Control of Phase Transitions for On-Demand Room-Temperature Rewritable Magnetic Patterning” in Advanced Materials. The study demonstrates a technique for writing, erasing and rewriting microscopic magnetic patterns onto a material and has applications for ultrafast computer memory. Read the Cornell Chronicle article: "Rewritable magnetic patterning: think tiny Etch A Sketch." Read more

muller next to stem

Muller Continues Working Towards EMPAD Mass Production

A recent Cornell Research article explores impressive statistics regarding accomplishments of the Cornell community that are changing the world. The article explores Cornell University's role as one of the top 10 academic innovators in the world according to Reuters News Agency. Cornell also ranked number one in research expenditures among New York State educational institutions, according to the National Science Foundation. The work of AEP Professor David Muller is highlighted as one of these projects. Muller continues his decades-long development of electron microscope pixel array detector... Read more

bo li

Bernard J. Couillaud Prize Awarded to AEP Postdoctoral Associate Bo Li

The Bernard J. Couillaud Prize "provides the opportunity for an early-career professional (1-5 years post highest degree) to pursue a compelling and innovative project that has the potential to make a meaningful and positive impact on the science and applications of ultrafast lasers. One early career professional will receive a merit-based award which includes a $20,500 USD prize and $5,000 USD in travel expenses. The goal is to support individuals in the area of ultrafast photonics for the purpose of providing dynamic and rigorous research with a state of the art approach to solving difficult... Read more

Some of the speakers from the EYH event

Cornell STEM group hosts hugely successful online outreach event

For 32 years the Cornell chapter of the national group called Expanding Your Horizons (EYH) has been hosting an on-campus event packed full of hands-on science activities for 7th through 9th grade girls. When the Cornell campus closed in March, the organizers had to change gears very quickly and create the 33rd annual EYH event as a strictly online happening. Berit Goodge, Ph.D. student in the School of Applied and Engineering Physics (AEP) and conference chair of the event, got busy. “Typically, we bring about 500 middle school girls plus parents and teachers to campus for one day for EYH,”... Read more