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Nanophysics Feb 14, 2023

Gate-tunable nanoscale negative refraction of polaritons demonstrated in van der Waals heterostructure

A new study led by Dai Qing's team from the National Center for Nanoscience and Technology (NCNST) of the Chinese Academy of Sciences (CAS) and Javier Abajo from the Institute of Photonic Sciences (ICFO) in Spain has shown ...

Environment Jan 31, 2023

Biden blocks Pebble gold mine in salmon-rich area of Alaska

The Biden administration banned the dumping of mining waste near Bristol Bay, Alaska, issuing a decree that thwarts longstanding plans to extract gold, copper and molybdenum because of potential harm to the region's thriving ...

Nanomaterials Jan 25, 2023

Physical surface details of mica studied on an atomic scale

At first glance, mica is something quite ordinary: it is a common mineral, found in granite for example, and has been extensively studied from geological, chemical and technical perspectives.

Analytical Chemistry Jan 23, 2023

Team develops strategy to regulate light absorption behaviors of titanium oxo clusters

A research team has improved the solar energy absorption of titanium oxo clusters. Their work demonstrates an effective strategy for regulating the light absorption behaviors of these clusters by importing electron-rich heterometals. ...

Optics & Photonics Jan 20, 2023

The Floquet engineering of quantum materials

Quantum materials are materials with unique electronic, magnetic or optical properties, which are underpinned by the behavior of electrons at a quantum mechanical level. Studies have showed that interactions between these ...

Nanomaterials Jan 20, 2023

In-place manufacturing method improves gas sensor capabilities, production time

When used as wearable medical devices, stretchy, flexible gas sensors can identify health conditions or issues by detecting oxygen or carbon dioxide levels in the breath or sweat. They also are useful for monitoring air quality ...

Environment Jan 17, 2023

Humans plunder the periodic table while turning blind eye to the risks of doing so, say researchers

For millions of years, nature has basically been getting by with just a few elements from the periodic table. Carbon, calcium, oxygen, hydrogen, nitrogen, phosphorus, silicon, sulfur, magnesium and potassium are the building ...

Nanomaterials Jan 10, 2023

Humidity may be the key to super-lubricity 'switch'

Sometimes friction is good, such as the friction between a road and a car's tires to prevent the vehicle from skidding. But sometimes friction is bad—if you did not put oil in that very same car, there would be so much friction ...

Nanophysics Dec 16, 2022

Study observes Luttinger liquid behavior in a quasi-2D system

Luttinger liquids are usually paramagnetic materials exhibiting non-Fermi liquid behavior, such as molybdenum oxides. These "liquids" and their fascinating properties had so far been only observed in 1D and quasi-1D compounds, ...

Nanomaterials Dec 12, 2022

2D material may enable ultra-sharp cellphone photos in low light

A new type of active pixel sensor that uses a novel two-dimensional material may both enable ultra-sharp cellphone photos and create a new class of extremely energy-efficient Internet of Things (IoT) sensors, according to ...

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