Search Content | Science News

ADVERTISEMENT

Support Science Journalism

Science News is a nonprofit.

Support us by subscribing now.

Search Content

E.g., 06/21/2019
E.g., 06/21/2019
Your search has returned 41 images:
  • illustration of Nernst effect
  • permanent marker on glass
  • Majorana fermions in a topological insulator
Your search has returned 51 articles:
  • News

    Magnetic test boosts case for record-setting superconductor

    A promising material for conducting electrical current without resistance at a relatively high temperature has passed a crucial test. New magnetic measurements, detailed by German physicists in a study posted online June 26 at arXiv.org, indicate that pressurized hydrogen sulfide is a superconductor at roughly 200 kelvins.

    The fresh data bolster the controversial claim of hydrogen...

    07/06/2015 - 08:30 Condensed Matter
  • News

    Electron pairs can take the heat

    Electrons zipping through a thin layer of strontium titanate interact and form pairs at higher temperatures than expected, researchers report in the May 14 Nature. The study is the first definitive evidence of coupled electrons in a solid material too warm for superconductivity, a state in which paired electrons move with no resistance. The research could help scientists better understand how...

    05/13/2015 - 13:00 Condensed Matter, Materials
  • News

    Tiny particles propel themselves upstream

    View the video

    Human-made microbeads don’t always go with the flow.

    Under certain conditions, the artificial particles can align themselves with a fluid’s flow and then swim upstream, researchers report May 1 in Science Advances. These particles represent a small step toward making more elaborate ones that can be used to target and treat disease, the scientists say.

    “This...

    05/01/2015 - 14:00 Physics, Condensed Matter
  • News

    High-temperature superconductivity record awaits confirmation

    SAN ANTONIO — Superconductors are finally heating up. A recent experiment is raising hopes that for the first time in two decades, physicists have set a record high temperature at which a material can transport electrical current with no resistance.

    The material, a compound of hydrogen and sulfur, must be compressed at extreme pressures to become superconducting. And the temperature at...

    03/06/2015 - 15:26 Condensed Matter
  • News

    Graphene’s allure becomes magnetic

    Although atom-thick sheets of carbon called graphene have many extraordinary properties, magnetism isn’t one of them. But a new study reveals that graphene can simply borrow the magnetic properties of a nearby material.

    The technique, reported in the Jan. 9 Physical Review Letters, creates a magnetic form of graphene by precisely placing it above a magnetic, insulating compound. It’s the...

    01/12/2015 - 18:15 Materials, Condensed Matter
  • News in Brief

    Material borders support unusually warm electronic superhighways

    Superconductivity seems to thrive on the edge.

    The interface between a conductive wafer and an iron-containing film is a superconductor, allowing electrons to dart along with no resistance at temperatures up to –164° Celsius, a study published November 24 in Nature Materials reveals. If confirmed, the finding would establish a new record high temperature for superconductivity at a...

    11/24/2014 - 14:47 Condensed Matter
  • News

    ‘Impermeable’ graphene yields to protons

    The world’s thinnest material has a soft spot for protons.

    Despite its impermeability to all atoms and molecules, the slim carbon film known as graphene allows protons to pass through it, new experiments reveal. The finding suggests that graphene and similar ultrathin materials can improve hydrogen fuel cells, which require a barrier that allows only protons to penetrate.

    “It’s...

    11/06/2014 - 08:00 Materials, Condensed Matter
  • News

    Perfect fluid of electrons may flow inside superconductor

    A solid material that conducts electricity perfectly at certain temperatures may also qualify as an almost perfectly flowing liquid.

    If the result is confirmed, the superconducting material would become the first nearly perfect fluid that isn’t among the hottest or coldest substances in the universe. The result also suggests a new way of deciphering a class of materials that could...

    10/20/2014 - 17:51 Condensed Matter
  • News

    Signal of elusive Majorana particle emerges in a nanowire

    Blips of electric current at the end of an atom-thick wire have brought physicists one step closer to confirming the existence of Majorana fermions, particles proposed 77 years ago that are their own antiparticles.

    The new experiment, described October 2 in Science, does not definitively prove that these particles exist. But it provides compelling evidence that complements findings from...

    10/03/2014 - 12:56 Condensed Matter
  • News

    Weird materials could make faster computers

    One of science’s newest wonder materials may find its way into computers.

    A study published in the July 24 Nature reveals that electrons coursing through the materials known as topological insulators can manipulate magnetic components like the ones in computer memory. The research represents one of the first attempts to find real-world uses for topological insulators.

    “This is the...

    07/23/2014 - 15:27 Materials, Condensed Matter, Computing