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Illustration of blue and grey balls layered over blue diamonds and yellow balls
Provided A Cornell team sought to explore the properties of monolayer iron selenide because, as a high-temperature superconductor, it has the potential to help researchers create novel electrical devices that conduct with zero resistance and, therefore, much greater efficiency.


Monolayer superconductor exhibits unusual behavior

Cornell researchers have discovered a rare “pseudogap” phenomenon that helps explain how the superconducting transition temperature can be greatly boosted in a single monolayer of iron selenide, and how it might be applied to other superconducting materials.
wooden structure set into the ground
Ministry of Culture - Italy The Noceto Vasca Votiva’s lower and upper tanks, dated to 1444 and 1432 B.C., respectively.


Researchers link ancient wooden structure to water ritual

Cornell researchers used dendrochronology and a form of radiocarbon dating to identify the ancient origins of the structure in Northern Italy.
Blue and green abstract image


Superfluid reacts strangely under pressure change

A Cornell-led collaboration identified an unusual behavior of superfluid helium-3 when it undergoes a phase transition between two different superfluid states – a transition that theoretically shouldn’t happen reliably.
Green and red hexagonal patterns


Superconducting quantum material has an organic twist

An interdisciplinary team of Cornell researchers has created a cohort of new quantum metamaterials that can achieve superconductivity at temperatures competitive with state-of-the-art solid-state materials synthesis.
Klarman Hall exterior


Mellon grant boosts collaborative projects for equity, social justice

The Andrew W. Mellon Foundation has approved a grant of $1.2 million to extend the Mellon Collaborative Studies in Architecture, Urbanism and the Humanities (AUH) interdisciplinary seminar series at Cornell for three years with a focus on social justice.
Large lab dominated by a blue ring device
Provided The muon g-2 ring sits in its detector hall amidst electronics racks, the muon beamline and other equipment at the U.S. Department of Energy’s Fermi National Accelerator Laboratory. This experiment studies the precession (or wobble) of muons as they travel through the magnetic field.


Elusive particle may point to undiscovered physics

The muon, a tiny particle, has the giant potential to upend our understanding of the subatomic world.
Neil Ashcroft


Neil Ashcroft, world-renowned theoretical physicist, dies at 82

Neil W. Ashcroft, the Horace White Professor of Physics Emeritus in the College of Arts and Sciences and a leading theorist in condensed matter physics, died March 15 in Ithaca. In the late 1960s and first half of the 1970s, he collaborated with David Mermin, professor emeritus of physics, to write “Solid State Physics,” which became the gold standard of textbooks for their discipline.
Orange and yellow origami bird


Self-folding nanotech creates world’s smallest origami bird

The researchers have generated a throng of nanoscale machines and components, each seemingly faster, smarter and more elegant than the last.
 person throwing a disc


Professor chases plastic all the way to Ultimate Hall of Fame

“There’s a state of awe, an expansiveness. Because in that moment, you expanded your conception of yourself.”
 Three people in academic robes


Celebrating December grads after ‘a semester like no other’

On Dec. 19, nearly 1,500 Cornell students celebrated their winter graduation in a virtual recognition ceremony viewed around the world – the first such event at Cornell, and a fitting end to what President Martha E. Pollack called “a semester like no other at Cornell.”

 model of a molecule: colored balls joined by grey lines


‘Roaming’ molecular fragments captured in real time

Sometimes atoms, like pets and adventuresome hikers, slip loose and wander off into the wild. Their final destination isn’t known, and their trajectory can be all over the map. It’s not so easy to track their path.

 Graphic showing gold balls and blue waves


Researchers trap electrons to create elusive crystal

Even though a crystal of electrons was first predicted in 1934, a method for achieving it had remained elusive.
 Cells dyed with purple


Researchers disrupt signaling pathway to treat colitis

The white blood cell TH17 helps the immune system fight infection by promoting inflammation. But it can be too much of a good thing: Excessive inflammation from TH17 overload has been tied to autoimmune disorders, such as inflammatory bowel disease (IBD) and arthritis.

 candle and flame


Nobel-winning physicist Arthur Ashkin, Ph.D. ’52, dies at 98

Arthur Ashkin, Ph.D. ’52, who won the Nobel Prize in physics in 2018 for pioneering “optical tweezers” that use laser light to capture and manipulate microscopic particles, died Sept. 21 at his home in Rumson, N.J. He was 98.

 Colored balls representing atoms in a lattice


Researchers identify new type of superconductor

“This experiment really shows the possibility of this new type of superconductor that we had never thought about before.”
 A rectangle with a channel carved in the middle


Superfluid shows more surprising phenomena

The superfluid helium-3 has many notable qualities. With its low mass and small atomic size, it remains in a liquid state – and when it transforms to the superfluid state, flowing without resistance – down to absolute zero, or minus 459.67 degrees Fahrenheit. It is a pure system, without any disorder. And it is full of surprises.

 Computer showing five people in screen shots


Alumni-fueled startups pitch clean-energy solutions

New York’s Southern Tier is getting a jolt of clean-energy innovation, fueled by  Cornell alumni.

 Black and white square with apendages


Laser jolts microscopic electronic robots into motion

These walking robots, roughly the size of a paramecium, can be mass produced, and may someday travel through human tissue and blood.
 Abstract shape pattern in blue, green, and yellow


Graphene sensors find subtleties in magnetic fields

As with actors and opera singers, when measuring magnetic fields it helps to have range.

Cornell researchers used an ultrathin graphene “sandwich” to create a tiny magnetic field sensor that can operate over a greater temperature range than previous sensors, while also detecting miniscule changes in magnetic fields that might otherwise get lost within a larger magnetic background.

 Lights connecting places on a dark planet


McMahon, Ramshaw named CIFAR Azrieli Global Scholars

Peter McMahon, assistant professor of applied and engineering physics in the College of Engineering, and Brad Ramshaw, the Dick & Dale Reis Johnson Assistant Professor of Physics in the College of Arts and Sciences, have been named CIFAR Azrieli Global Scholars.