Category Physics

Graphene Electrodes offer new Functionalities in Molecular Electronic Nanodevices

The researchers performed the characterization of graphene-based molecular electronic devices at room-temperature and demonstrated that molecules covalently attached to mechanically robust graphene substrates are ideal candidates for next-generation molecular electronic devices. Credit: © Alexander Rudnev, University of Bern

The researchers performed the characterization of graphene-based molecular electronic devices at room-temperature and demonstrated that molecules covalently attached to mechanically robust graphene substrates are ideal candidates for next-generation molecular electronic devices. Credit: © Alexander Rudnev, University of Bern

An international team led by the University of Bern and the National Physical Laboratory (NPL) has revealed a new way to tune the functionality of next-generation molecular electronic devices using graphene. The results could be exploited to develop smaller, higher-performance devices for use in a range of applications including molecular sensing, flexible electronics, and energy conversion and storage, as well as robust measurement setups for resistance standards.

Na...

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Neutrino discovery—a step closer to finding Charge-Parity Violation

The detected pattern of an electron neutrino candidate event observed by Super-Kamiokande. Credit: University of Tokyo Read more at: https://phys.org/news/2017-06-neutrino-discoverya-closer-charge-parity-violation.html#jCp

The detected pattern of an electron neutrino candidate event observed by Super-Kamiokande. Credit: University of Tokyo

The different rates of neutrino and anti-neutrino oscillations recorded by an international collaboration of researchers in Japan—including from Kavli IPMU—is an important step in the search for a new source of asymmetry in the laws that govern matter and antimatter. The Standard Model of particle physics describes the basic building blocks of matter and how they interact. It also makes a point that for every particle created, there is an anti-particle...

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Quantum Nanoscope: Seeing electrons surfing the waves of light on Graphene

Electrons and light are moving in concert along the graphene sheet. Credit: ICFO/ F. Vialla

Electrons and light are moving in concert along the graphene sheet.
Credit: ICFO/ F. Vialla

Researchers have studied how light can be used to “see” the quantum nature of an electronic material. They managed to do that by capturing light in a net of carbon atoms and slowing down light it down so that it moves almost as slow as the electrons in the graphene. Then something special happens: electrons and light start to move in concert, unveiling their quantum nature at such large scale that it could observed with a special type of microscope.

The experiments were performed with ultra-high quality graphene...

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Sea Urchin Protein provides insights into Self-Assembly of Skeletal Structures

Scanning electron microscopy image of a calcite crystal generated in the presence of the sea urchin protein rSM50 on a silicon wafer showing organized nanotexturing on exposed surfaces

Scanning electron microscopy image of a calcite crystal generated in the presence of the sea urchin protein rSM50 on a silicon wafer showing organized nanotexturing on exposed surfaces

Researchers are investigating a protein found inside the spicules of a sea urchin embryo to understand what makes these proteins such efficient ‘brick organizers’. Calcium carbonate, or CaCO3, comprises more than 4% of Earth’s crust. Its most common natural forms are chalk, limestone, and marble, produced by the sedimentation of the shells of small fossilized snails, shellfish, and coral over millions of years. NYU Dentistry researchers are studying how nature creates 3D CaCO3 inorganic/organic based materials to form seashells, invertebrate exoskeletons, and vertebrate bone, dentine, and enamel.

John Evans,...

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