Spin-torque oscillators (STOs) are nanoscale devices that generate microwaves using changes in magnetic field direction, but those produced by any individual device are too weak for practical applications. Physicists have ...
General Physics
Aug 7, 2019
0
4
The application of large enough magnetic fields results in the disruption of superconducting states in materials, even at drastically low temperature, thereby changing them directly into insulators—or so was traditionally ...
Superconductivity
Jun 28, 2019
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0
In many materials, electrical resistance and voltage change in the presence of a magnetic field, usually varying smoothly as the magnetic field rotates. This simple magnetic response underlies many applications including ...
General Physics
Jun 21, 2019
3
3
Using optical and electrical measurements, a two-dimensional anisotropic crystal of rhenium disulfide was found to show opposite piezoresistant effects along two principle axes, i.e. positive along one axis and negative along ...
Nanomaterials
Jun 12, 2019
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14
Antibiotic-resistant bacteria are an increasing health threat, making new antibiotics essential. German researchers have recently had a breakthrough: they discovered lugdunin in the human nose—a new kind of cyclic peptide ...
Biochemistry
May 27, 2019
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277
Magnetic skyrmions are tiny entities, manifesting in magnetic materials that consist of localized twists in the magnetization direction of the medium. Each skyrmion is highly stable because eliminating it requires untwisting ...
General Physics
May 6, 2019
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49
Modern macroeconomics has failed to produce an understanding of economies in times of crisis. Modern macroeconomics are still based on the assumption of equilibria, but a shock pushes economies out of a state of equilibrium. ...
Economics & Business
Apr 16, 2019
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9
Advanced robotics sensitive touch or next-generation wearable devices with sophisticated sensing capabilities could soon be possible following the development of a rubber that combines flexibility with high electrical conductivity.
Materials Science
Apr 12, 2019
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183
Detecting a single DNA sequence demands high sensitivity. DNA amplification is used to generate thousands of DNA copies so that it can be easily detected and identified. To do so, scientists often employ a technique called ...
Nanomaterials
Mar 20, 2019
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28
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 ...
Condensed Matter
Mar 18, 2019
0
85
