Researchers discover new material to help power electronics

18.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

Electronics rule our world, but electrons rule our electronics. A research team at The Ohio State University has discovered a way to simplify how electronic devices use those electrons—using a material that can serve dual roles in electronics, where historically multiple materials have been necessary.

Semimetals are high conductors

18.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

Researchers in China and at UC Davis have measured high conductivity in very thin layers of niobium arsenide, a type of material called a Weyl semimetal. The material has about three times the conductivity of copper at room temperature, said Sergey Savrasov, professor of physics at UC Davis. Savrasov is a coauthor on the paper published March 18 in Nature Materials.

Supercrystal: A hidden phase of matter created by a burst of light

18.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

"Frustration" plus a pulse of laser light resulted in a stable "supercrystal" created by a team of researchers led by Penn State and Argonne National Laboratory, together with University of California, Berkeley, and two other national laboratories.

Are we at the limits of measuring water-repellent surfaces?

14.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

How liquids are repelled by a surface, a property called "wettability," is important for engineers to develop aircraft that resist ice formation, for fashion designers developing outdoor gear that repels rain and dirt, and many other fields. Researchers developing whole new surface materials in the lab also need accurate measurement of wetting properties so they can compare how different surfaces behave.

Researchers use SLAC instrument to learn what happens to silicon under intense pressure

14.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

Elasticity, the ability of an object to bounce back to its original shape, is a universal property in solid materials. But when pushed too far, materials change in unrecoverable ways: Rubber bands snap in half, metal frames bend or melt and phone screens shatter.

Nvidia buys Israeli chipmaker Mellanox for $6.9 bn

11.03. 2019 Semiconductor Technology News - Semiconductor News, Semiconductors, Semiconductor Technology

US computer graphics giant Nvidia said Monday it is acquiring Israeli data center firm Mellanox for $6.9 billion, to expand its presence in the high performance computing segment.

How antifreeze proteins make ice crystals grow

08.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

Bacteria, plants, insects and fish use antifreeze proteins to protect themselves from the cold. The proteins block the growth of ice crystals. In a new study, a German-Israeli research team has confirmed that these proteins also possess an unusual second property: at low temperatures, they can promote rather than inhibit the growth of ice crystals.

How antifreeze proteins make ice crystals grow

08.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

Bacteria, plants, insects and fish use antifreeze proteins to protect themselves from the cold. The proteins block the growth of ice crystals. In a new study, a German-Israeli research team has confirmed that these proteins also possess an unusual second property: at low temperatures, they can promote rather than inhibit the growth of ice crystals.

Using laser ‘tweezers,’ scientists grab and study tiny protein droplets

07.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

University at Buffalo physicists are using innovative tools to study the properties of a bizarre class of molecules that may play a role in disease: proteins that cluster together to form spherical droplets inside human cells.

Special surface manipulation forces dropped liquids to spiral when they rebound

07.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

A team of researchers affiliated with several institutions in China has found a way to force liquid drops to spiral as they rebound after landing on a manipulated surface. In their paper published in the journal Nature Communications, the group describes how their method works and possible applications.

Controlling pressure-driven ionic flow by voltage at molecular scale

07.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

Similar to our computers which handle electrons to perform the calculations and logics, all the circuitry in living beings is based on the transport of ions, such as sodium, chloride, calcium, etc. Nature exploits incredibly subtle transport of these elementary charges and an artillery of ion channels to perform advanced functions by manipulating the—often exotic—behaviour of ion transport at molecular scales. Achieving such features in artificial channels remains a considerable challenge.

The force is with us, always? Tuning quantum vacuum forces from attractive to repulsive

04.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

The force is strong not only in Star Wars lore but also as a fundamental property in physics. For example, scientists can put two uncharged metal plates close together in a vacuum, and "voila!" —-they will attract each other like Luke Skywalker and his trusted lightsaber.

Researchers use machine learning to more quickly analyze key capacitor materials

04.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

Capacitors, given their high energy output and recharging speed, could play a major role in powering the machines of the future, from electric cars to cell phones.

Chirality yields colossal photocurrent

04.03. 2019 Condensed Matter News - Physics News, Physic Materials News, Physics, Materials

A recently discovered Weyl semimetal delivers the largest intrinsic conversion of light to electricity of any material, an international team lead by a group of Boston College researchers reports today in the journal Nature Materials.

CST Global sampling 1270nm DFB lasers in TO can packages for FTTH markets

04.03. 2019 lSemiconductor Today News

III-V optoelectronic foundry Compound Semiconductor Technologies Global Ltd (CST Global) of Blantyre, Glasgow, Scotland, UK says that samples of its 1270nm, 10Gb/s and 2.5Gb/s distributed feedback (DFB) lasers are now available in standard TO-56 can packages...