Hacker News with Generative AI: Superconductivity

Scientists reveal hidden interface in superconducting qubit material (phys.org)
Researchers from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory and DOE's Pacific Northwest National Laboratory (PNNL) have uncovered an unexpected interface layer that may be hindering the performance of superconducting qubits, the building blocks of quantum computers.

Quantum Computing, Superconductivity, Materials Science

4 points by PaulHoule 22 days ago | 0 comments

Physicists discover a copper-free high-temperature superconducting oxide (phys.org)
Professor Ariando and Dr. Stephen Lin Er Chow from the National University of Singapore (NUS) Department of Physics have designed and synthesized a groundbreaking new material—a copper-free superconducting oxide—capable of superconducting at approximately 40 Kelvin (K), or about minus 233°C, under ambient pressure.

Physics, Superconductivity, Materials Science

7 points by bookofjoe 72 days ago | 2 comments

Nickel superconductor works above -233°C threshold at normal pressure (phys.org)
A team of engineers and physicists at Southern University of Science and Technology, in China, has created a nickel-based material that behaves as a superconductor above the -233°C (40 K) threshold under ambient pressure.

Superconductivity, Materials Science, Physics

125 points by PaulHoule 90 days ago | 24 comments

Room-temperature superconductors: Fundamental constants suggest they could exist (phys.org)
In a new development that could help redefine the future of technology, a team of physicists has uncovered a fundamental insight into the upper limit of superconducting temperature.

Physics, Superconductivity, Materials Science

8 points by bilsbie 93 days ago | 3 comments

Magnetic field sorting of superconducting graphite particles with Tc>400K (2024) (arxiv.org)
It has been claimed that graphite hosts superconductivity at room temperature, although all efforts to isolate it have been vain. Here we report a separation method that uses magnetic field gradients to sort the superconducting from normal grains out of industrial graphite powders.

Superconductivity, Graphite, Materials Science, Physics

72 points by ykch 114 days ago | 39 comments

The superconductivity of layered graphene (newscientist.com)
Why do cold thin sheets of carbon offer no resistance to electric currents? Two experiments are bringing us closer to an answer – and maybe even to practical room-temperature superconductors.

Superconductivity, Materials Science, Physics, Graphene

134 points by westurner 121 days ago | 33 comments

Exotic new superconductors delight and confound (quantamagazine.org)
This year, superconductivity — the flow of electric current with zero resistance — was discovered in three distinct materials. Two instances stretch the textbook understanding of the phenomenon. The third shreds it completely. “It’s an extremely unusual form of superconductivity that a lot of people would have said is not possible,” said Ashvin Vishwanath, a physicist at Harvard University who was not involved in the discoveries.

Physics, Superconductivity, Science

231 points by ernesto95 180 days ago | 70 comments

Exotic New Superconductors Delight and Confound (quantamagazine.org)
This year, superconductivity — the flow of electric current with zero resistance — was discovered in three distinct materials. Two instances stretch the textbook understanding of the phenomenon. The third shreds it completely.

Physics, Superconductivity, Materials Science

9 points by rbanffy 183 days ago | 0 comments

Revealing the superconducting limit of twisted bilayer graphene (phys.org)
Graphene is a simple material containing only a single layer of carbon atoms, but when two sheets of it are stacked together and offset at a slight angle, this twisted bilayer material produces numerous intriguing effects, notably superconductivity.

Superconductivity, Materials Science, Graphene

7 points by PaulHoule 214 days ago | 0 comments

Room-Temperature Superconductivity Heats Up (cacm.acm.org)
Workable technology could all but eliminate energy losses while significantly advancing neuromorphic AI computing.

Superconductivity, Physics, Energy, Artificial Intelligence, Computing

13 points by pseudolus 224 days ago | 12 comments

New superconductor has record breaking current density (physicsworld.com)

Superconductivity, Physics, Materials Science

7 points by thebeardisred 263 days ago | 0 comments

Superconducting Microprocessors? Turns Out They're Ultra-Efficient (2021) (ieee.org)

Superconductivity, Microprocessors, Efficiency

169 points by actinium226 312 days ago | 93 comments

Indications of superconductivities in blend of variant apatite and covellite (arxiv.org)

Superconductivity, Materials Science, Physics, Chemistry

26 points by hfuaiobfa 347 days ago | 20 comments

HH70, the first high-temperature superconducting Tokamak achieves first plasma (energysingularity.cn)