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condensed matter physics
New Kind of Magnetism Spotted in an Engineered Material
In an atomically thin stack of semiconductors, a mechanism unseen in any natural substance causes electrons’ spins to align.
Meet Strange Metals: Where Electricity May Flow Without Electrons
For 50 years, physicists have understood current as a flow of charged particles. But a new experiment has found that in at least one strange material, this understanding falls apart.
Invisible ‘Demon’ Discovered in Odd Superconductor
Physicists have long suspected that hunks of metal could vibrate in a peculiar way that would be all but invisible. Now physicists have spotted these “demon modes.”
Physicists Who Explored Tiny Glimpses of Time Win Nobel Prize
The development of attosecond pulses of light allowed researchers to explore the frame-by-frame movement of electrons.
Is Perpetual Motion Possible at the Quantum Level?
A new phase of matter called a “time crystal” plays with our expectations of thermodynamics. The physicist Vedika Khemani talks with Steven Strogatz about its surprising quantum behavior.
Room-Temperature Superconductor Discovery Meets With Resistance
A paper in Nature reports the discovery of a superconductor that operates at room temperatures and near-room pressures. The claim has divided the research community.