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In a new report published on Science, Zhenyi Ni and a research team in applied physical sciences, mechanical and materials engineering and computer and energy engineering in the U.S. profiled spatial and energetic distributions ...
Any device that sends out a Wi-Fi signal also emits terahertz waves —electromagnetic waves with a frequency somewhere between microwaves and infrared light. These high-frequency radiation waves, known as "T-rays," are also ...
General Physics
2 hours ago
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341
You know how you leave space in a water bottle before you pop it in the freezer—to accommodate the fact that water expands as it freezes? Most metal parts in airplanes face the more common opposite problem. At high altitudes ...
Condensed Matter
Mar 26, 2020
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774
Since its discovery in 2014, phosphorene—a sheet of phosphorus atoms only a single atom thick—has intrigued scientists due to its unique optoelectronic anisotropy. In other words, electrons interact with light and move ...
General Physics
Mar 25, 2020
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267
Biohydrogels—biomaterials composed of polymer chains dispersed in water—have been studied closely by researchers for their potential use in biomedical applications, such as in tissue repair, as surgical sealants, and ...
Condensed Matter
Mar 24, 2020
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6
Scientists have made a breakthrough in the development of a new generation of electronics that will require less power and generate less heat.
General Physics
Mar 23, 2020
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859
The crystal structure at the surface of semiconductor materials can make them behave like metals and even like superconductors, a joint Swansea/Rostock research team has shown. The discovery potentially opens the door to ...
Condensed Matter
Mar 17, 2020
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401
Strain-sensitive barium strontium titanate (Bax-Sr1-x-TiO3) perovskite systems are widely used for their superior nonlinear dielectric behaviors. In a new report on Science Advances, D.L. Ko and a research team in materials ...
A team of researchers from the University of Regensburg and Ludwig-Maximilians-University Munich has developed a way to measure the dependence of an atom's chemical reactivity on its chemical bonds. In their paper published ...
Extreme temperature can do strange things to metals. In severe heat, iron ceases to be magnetic. In devastating cold, lead becomes a superconductor.
General Physics
Mar 07, 2020
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450
Electrons spin. It's a fundamental part of their existence. Some spin "up" while others spin "down." Scientists have known this for about a century, thanks to quantum physics.
Condensed Matter
Mar 06, 2020
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675
Researchers from the University of Toronto Engineering and King Abdullah University of Science and Technology (KAUST) have overcome a key obstacle in combining the emerging solar-harvesting technology of perovskites with ...
Condensed Matter
Mar 05, 2020
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3451
The term "colloidal gel" may not be a household phrase, but examples of these materials are everywhere in our daily lives, from toothpaste and shower gel to mayonnaise and yogurt. Colloidal gels are mixtures of particles ...
Condensed Matter
Mar 04, 2020
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109
If you heat a solid material enough, the thermal energy (latent heat) causes the material's molecules begin to break apart, forming a liquid. One of the most familiar examples of this phase transition from a well-ordered ...
Condensed Matter
Mar 02, 2020
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41
If new and promising semiconductor materials are to make it into our phones, computers, and other increasingly capable electronics, researchers must obtain greater control over how those materials function.
Condensed Matter
Feb 28, 2020
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289
Silicon, the best-known semiconductor, is ubiquitous in electronic devices including cellphones, laptops and the electronics in cars. Now, researchers at the National Institute of Standards and Technology (NIST) have made ...
Condensed Matter
Feb 26, 2020
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226
University of Warwick researchers can now explain why some water droplets bounce like a beach ball off surfaces, without ever actually touching them. Now the design and engineering of future droplet technologies can be made ...
Condensed Matter
Feb 26, 2020
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240
Cameras shooting up to 25,000 frames a second have been used to capture the moment two droplets of liquid come together and mix—and it is opening up research into new applications for 3-D printing.
Condensed Matter
Feb 25, 2020
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226
A new type of battery combines negative capacitance and negative resistance within the same cell, allowing the cell to self-charge without losing energy, which has important implications for long-term storage and improved ...
Condensed Matter
Feb 25, 2020
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85
A team of international scientists investigating how to control the spin of atom-like impurities in 2-D materials have observed the dependence of the atom's energy on an external magnetic field for the first time.
Condensed Matter
Feb 24, 2020
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142
