Physics

Rotational form of spontaneous crystallographic ordering discovered in ferroic material

A team of researchers from the University of Michigan and Rutgers University has discovered a rotational form of spontaneous crystallographic ordering in a ferroic material. In their paper published in the journal Nature Physics, the group describes their work with ferro-rotational orders under different conditions and what they learned about them. Manfred Fiebig with ETH Zurich has published a News & Views piece on the work done by the team in the same issue—he also gives a brief history of ferromagnetism and what has been learned about it over the past 2,000 years.

World-leading microscopes take candid snapshots of atoms in their 'neighborhoods'

We can directly see the hidden world of atoms thanks to electron microscopes, first developed in the 1930s. Today, electron microscopes, which use beams of electrons to illuminate and magnify a sample, have become even more sophisticated, allowing scientists to take real-world snapshots of materials with a resolution of less than half the diameter of a hydrogen atom.

Engineers exploit the repeating structure of turbulence to create a more complete model of the phenomenon

A Caltech engineer has unlocked some of the secrets behind turbulence, a much-studied but difficult-to-pin-down phenomenon that mixes fluids when they flow past a solid boundary.

Physics of windshield-cracking raindrops could demolish kidney stones

A plane has to be going pretty fast for a mere raindrop to crack its windshield, but it can happen. Now, new models of the physics behind the improbable feat may just help doctors crack kidney stones to pieces.

'Intelligent' metamaterial makes MRIs affordable and accessible

Researchers have developed a new, 'intelligent' metamaterial -- which costs less than ten dollars to build -- that could revolutionize magnetic resonance imaging (MRI), making the entire MRI process faster, safer, and more accessible to patients around the world.

Researchers design 'intelligent' metamaterial to make MRIs affordable and accessible

Boston University researchers have developed a new, "intelligent" metamaterial—which costs less than ten bucks to build—that could revolutionize magnetic resonance imaging (MRI), making the entire MRI process faster, safer, and more accessible to patients around the world. The technology, which builds on previous metamaterial work by the team, was described in a new paper in Advanced Materials.

Black holes sometimes behave like conventional quantum systems

A group of Skoltech researchers led by Professor Anatoly Dymarsky have studied the emergence of generalized thermal ensembles in quantum systems with additional symmetries. As a result they found that black holes thermalize the same way ordinary matter does. The results of their study were published in Physical Review Letters.

Study observes anomalous decay of coherence in a dissipative many-body system

In quantum physics, some of the most interesting effects are the result of interferences. Decoherence, or loss of coherence, occurs when a quantum system eventually loses the ability to produce interferences, due to external noise or coupling to a larger and unmonitored system (i.e. the surrounding environment).

Laser pulses create topological state in graphene

Discovering ways to control the topological aspects of quantum materials is an important research frontier because it can lead to desirable electrical and spin transport properties for future device technologies. Now MPSD scientists have discovered a pioneering laser-driven approach to generate a topological state in graphene. Their work has just been published in Nature Physics.

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